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Sim W, Dominic Ekpe O, Lee EH, Arafath SY, Lee M, Kim KH, Oh JE. Distribution and ecological risk assessment of priority water pollutants in surface river sediments with emphasis on industrially affected areas. CHEMOSPHERE 2024; 352:141275. [PMID: 38253089 DOI: 10.1016/j.chemosphere.2024.141275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 01/18/2024] [Accepted: 01/19/2024] [Indexed: 01/24/2024]
Abstract
Priority water pollutants comprising six plasticizers, 18 volatile organic compounds (VOCs), total petroleum hydrocarbon (TPH), 1,4-dioxane, epichlorohydrin, formaldehyde, acrylamide, and cyanides were determined in surface river sediments to assess their distribution patterns and ecological risks. Among these, di (2-ethylhexyl) phthalate (DEHP), toluene, TPH, and acrylamide were frequently found in sediments. The industrial sites had higher concentrations of ∑plasticizers (median 628 ng/g dry weight (dw)), ∑VOCs (median 3.35 ng/g dw), acrylamide (median 0.966 ng/g dw), and TPH (median 152 μg/g dw) in sediments than the mixed and non-industrial areas. The other pollutants did not show the significant differences in levels according to site types because of their relatively low detection frequencies. Volatile and soluble substances as well as hydrophobic pollutants were predominantly detected in surface sediments from industrial areas. Sediment contamination patterns were affected by the size and composition of the industrial zones around the sampling sites. The ecological risks determined using the sediment quality guidelines (DEHP, VOCs, and TPH) and the mean probable effect level quotients (DEHP) were mostly acceptable. However, the two most representative industrial regions (the largest industrial area and the first industrial city) showed risks of concern for DEHP and TPH.
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Affiliation(s)
- Wonjin Sim
- Institute for Environment and Energy, Pusan National University, Busan, 46241, Republic of Korea.
| | - Okon Dominic Ekpe
- Department of Civil and Environmental Engineering, Pusan National University, Busan, 46241, Republic of Korea.
| | - Eun-Hee Lee
- KEEY Envitec, Wonju, 26339, Republic of Korea.
| | - Sharfudeen Yasar Arafath
- Department of Civil and Environmental Engineering, Pusan National University, Busan, 46241, Republic of Korea.
| | - Mikyung Lee
- National Institute of Environmental Research, Incheon, 22689, Republic of Korea.
| | - Kyung Hee Kim
- National Institute of Environmental Research, Incheon, 22689, Republic of Korea.
| | - Jeong-Eun Oh
- Institute for Environment and Energy, Pusan National University, Busan, 46241, Republic of Korea; Department of Civil and Environmental Engineering, Pusan National University, Busan, 46241, Republic of Korea.
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Bhuyan B, Kotoky R, Pandey P. Impacts of rhizoremediation and biostimulation on soil microbial community, for enhanced degradation of petroleum hydrocarbons in crude oil-contaminated agricultural soils. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:94649-94668. [PMID: 37535290 DOI: 10.1007/s11356-023-29033-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 07/25/2023] [Indexed: 08/04/2023]
Abstract
Hydrocarbonoclastic bacterial strains were isolated from rhizosphere of plants growing in crude oil-contaminated sites of Assam, India. These bacteria showed plant growth-promoting attributes, even when exposed to crude oil. Two independent pot trials were conducted to test the rhizodegradation ability of the bacterial consortium in combination of plants Azadirchta indica or Delonix regia in crude oil-contaminated soil. Field experiments were conducted at two crude oil-contaminated agricultural field at Assam (India), where plants (A. indica or D. regia) were grown with the selected bacterial consortium consisting of five hydrocarbonoclastic bacterial isolates (Gordonia amicalis BB-DAC, Pseudomonas aeruginosa BB-BE3, P. citronellolis BB-NA1, Rhodococcus ruber BB-VND, and Ochrobactrum anthropi BB-NM2), and NPK was added to the soil for biostimulation. The bacterial consortium-NPK biostimulation led to change in rhizosphere microbiome with enhanced degradation of petroleum hydrocarbons (PHs) in soils contaminated with crude oil. After 120 days of planting A. indica + consortium + NPK treatment, degradation of PHs was found to be up to 67%, which was 55% with D. regia with the same treatment. Significant changes in the activities of plant and soil enzymes were also noted. The shift is bacterial community was also apparent as with A. indica, the relative abundance of Proteobacteria, Actinobacteria, and Acidobacteria increased by 35.35%, 26.59%, and 20.98%, respectively. In the case of D. regia, the relative abundance of Proteobacteria, Actinobacteria, and Acidobacteria were increased by 39.28%, 35.79%, and 9.60%, respectively. The predicted gene functions shifted in favor of the breakdown of xenobiotic compounds. This study suggests that a combination of plant-bacterial consortium and NPK biostimulation could be a productive approach to bioengineering the rhizosphere microbiome for the purpose of commercial bioremediation of crude oil-contaminated sites, which is a major environmental issue faced globally.
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Affiliation(s)
- Bhrigu Bhuyan
- Department of Microbiology, Assam University, Silchar, Assam, 788011, India
| | - Rhitu Kotoky
- Department of Microbiology, Assam University, Silchar, Assam, 788011, India
| | - Piyush Pandey
- Department of Microbiology, Assam University, Silchar, Assam, 788011, India.
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Han L, Chang C, Yan S, Qu C, Tian Y, Guo J, Guo J. Distribution, Sources and Risk Assessment of Polychlorinated Biphenyls in Sediments from Beiluo River. TOXICS 2023; 11:139. [PMID: 36851013 PMCID: PMC9958545 DOI: 10.3390/toxics11020139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 01/20/2023] [Accepted: 01/28/2023] [Indexed: 06/18/2023]
Abstract
The distribution and source of polychlorinated biphenyls (PCBs) pollution in the Beiluo River, the secondary tributary of the Yellow River, still remain unclear. With the purpose of determining the distribution, origins, and pollution levels of PCBs and their consequences on ecological risks, the concentrations of 27 PCBs at 17 locations in the sediments of the Beiluo River were examined in this study. The results showed that the mass concentrations of ∑PCBs in the sediment ranged from 0.12 to 1.25 ng∙g-1 (DW), with the highest point at sampling site B13 downstream of the river. Compared to most river sediments, both domestically and internationally, the concentration of PCBs in the sediment of the Beiluo River was at a low level, with 10-PCB and 6-PCB as the main components, indicating that the PCBs that are difficult to volatilise and degrade are more likely to remain in the sediment. The origins of PCBs in the sediments of the Beiluo River were examined by using positive matrix factorisation (PMF). The results revealed that the contamination of PCBs in the sediments of the Beiluo River mainly resulted from industrial emissions, technical PCB mixtures, and coal and wood combustion. The results of the ecological risk assessment indicated that PCBs in the sediments of the study area rarely contribute to adverse biological effects and the potential low risk to the environment.
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Affiliation(s)
- Linrong Han
- Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, College of Urban and Environmental Sciences, Northwest University, Xi’an 710127, China
| | - Chao Chang
- Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, College of Urban and Environmental Sciences, Northwest University, Xi’an 710127, China
| | - Shiwei Yan
- Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, College of Urban and Environmental Sciences, Northwest University, Xi’an 710127, China
| | - Chengkai Qu
- State Key Laboratory of Biogeology and Environmental Geology, School of Environmental Studies, China University of Geosciences, Wuhan 430074, China
| | - Yulu Tian
- Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, College of Urban and Environmental Sciences, Northwest University, Xi’an 710127, China
| | - Jipu Guo
- State Grid Shaanxi Electric Power Research Institute, Xi’an 710100, China
| | - Jiahua Guo
- Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, College of Urban and Environmental Sciences, Northwest University, Xi’an 710127, China
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Dehvari M, Takdastan A, Jorfi S, Ahmadi M, Tahmasebi Birgani Y, Babaei AA. Distribution of total petroleum hydrocarbons in superficial sediments of Karun River Basin, southwest of Iran: spatial and seasonal variations, source identification, and ecological risk. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2023; 33:71-82. [PMID: 34781808 DOI: 10.1080/09603123.2021.2000591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 10/27/2021] [Indexed: 06/13/2023]
Abstract
Total petroleum hydrocarbons (TPHs) are common environmental pollutants in aquatic ecosystems that tend to adsorb onto the sediments. This study aimed to monitor the concentration and assessment of contamination level of TPHs in the sediments of Karun River and Bahmanshir estuary, which will eventually flow into the Persian Gulf. GIS-mapping technique was used to indicate the distribution of TPHs. The samples were collected during dry and wet seasons at 15 monitoring stations. - The maximum amount of TPHs was obtained at station No. 14 in the dry season (225.29 μg/g). The indices of determining the pollution source showed that hydrocarbons in polluted areas were mainly of biogenic origin. Compared to sediment quality guidelines (SQGs) and contamination factor (Cf), the study area sediments were in the conditions of moderate pollution and had a low ecological risk.
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Affiliation(s)
- Mahboobeh Dehvari
- Student Research Committee, Department of Environmental Health Engineering, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Afshin Takdastan
- Environmental Technologies Research Center (ETRC), Department of Environmental Health Engineering, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Sahand Jorfi
- Environmental Technologies Research Center (ETRC), Department of Environmental Health Engineering, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mehdi Ahmadi
- Environmental Technologies Research Center (ETRC), Department of Environmental Health Engineering, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Yaser Tahmasebi Birgani
- Environmental Technologies Research Center (ETRC), Department of Environmental Health Engineering, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Ali Akbar Babaei
- Environmental Technologies Research Center (ETRC), Department of Environmental Health Engineering, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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Wang X, Wang C, Jiang W, Pan Y, Li F, Tian H. The occurrence and partition of total petroleum hydrocarbons in sediment, seawater, and biota of the eastern sea area of Shandong Peninsula, China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:82186-82198. [PMID: 35748986 DOI: 10.1007/s11356-022-21376-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Accepted: 06/04/2022] [Indexed: 06/15/2023]
Abstract
To investigate the occurrence and partition of total petroleum hydrocarbons (TPHs), sediment, seawater, and biota of the eastern sea area of Shandong Peninsula (China) were sampled in 2016. Due to shipping activities and discharge of industrial wastes, the TPH levels in the sediment decreased from the coastal areas to the offshore area. Waterborne TPH concentrations showed a decreasing order of autumn > summer > spring > winter, probably caused by low input of pollutants from the river into the ocean in dry seasons and frequent aquaculture operations in wet seasons. The distribution coefficient (logKd) between sediment and seawater ranged from 2.00 to 5.05, suggesting that TPHs are preferentially retained by the sediment. Significant positive correlations between logKd and total organic carbon (TOC), mud (fine particles), and temperature, as well as negative correlations between logKd and dissolved oxygen (DO), hydrogen ion concentration (pH), and oxidation-reduction potential (Eh), suggest interactions between environmental behaviors of TPHs and physicochemical factors. Mean bioaccumulation factors (BAFs) of TPHs in fish, shrimps, and mollusks were determined to be 240 ± 200, 900 ± 1800, and 2630 ± 1280, respectively, suggesting that considerable bioaccumulation occurs in shrimps when TPHs are transported from the seawater to the shrimps. A negative linear correlation between logTPHs and trophic level indicated biodilution of TPHs along the marine food web. This is the first study that has focused on the accumulation of TPHs in the entire sediment-seawater-biota system.
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Affiliation(s)
- Xue Wang
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, Shandong, China
| | - Chunhui Wang
- North China Sea Environmental Monitoring Center of State Oceanic Administration, Qingdao, 266033, Shandong, China
- Shandong Provincial Key Laboratory of Marine Ecological Environment and Disaster Prevention and Mitigation, Qingdao, 266061, Shandong, China
| | - Weiwei Jiang
- Shandong Provincial Key Laboratory of Marine Ecological Environment and Disaster Prevention and Mitigation, Qingdao, 266061, Shandong, China.
- North China Sea Marine Forecasting Center of State Oceanic Administrator, Qingdao, 266061, Shandong, China.
| | - Yulong Pan
- North China Sea Environmental Monitoring Center of State Oceanic Administration, Qingdao, 266033, Shandong, China
- Shandong Provincial Key Laboratory of Marine Ecological Environment and Disaster Prevention and Mitigation, Qingdao, 266061, Shandong, China
| | - Fujuan Li
- North China Sea Environmental Monitoring Center of State Oceanic Administration, Qingdao, 266033, Shandong, China
- Shandong Provincial Key Laboratory of Marine Ecological Environment and Disaster Prevention and Mitigation, Qingdao, 266061, Shandong, China
| | - Hua Tian
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, Shandong, China.
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Shi J, Huang L, Sanganyado E, Mo J, Zhao H, Xiang L, Wong MH, Liu W. Spatial distribution and ecological risks of polychlorinated biphenyls in a river basin affected by traditional and emerging electronic waste recycling in South China. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 243:114010. [PMID: 36030683 DOI: 10.1016/j.ecoenv.2022.114010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 08/16/2022] [Accepted: 08/21/2022] [Indexed: 06/15/2023]
Abstract
With development of e-waste related legislation in China, formal recycling activities are designated in some areas while informal ones are illegally transferred to emerging areas to avoid supervision. However, the resulting environmental impact and ecological risks are not clear. Here, we investigated the discharge of polychlorinated biphenyls (PCBs) to soil and aquatic environments by e-waste recycling activities in the Lian River Basin, China. The study area included a designated industrial park in the traditional e-waste recycling area (Guiyu, known as the world's largest e-waste center), several emerging informal recycling zones, and their surrounding areas and coastal area. A total of 27 PCBs were analyzed, and the highest concentration was found in an emerging site for soil (354 ng g-1) and in a traditional site for sediment (1350 ng g--1) respectively. The pollution levels were significantly higher in both the traditional and emerging recycling areas than in their respective upstream countryside areas (p = 0.0356 and 0.0179, respectively). Source analysis revealed that the traditional and emerging areas had similar PCB sources mainly associated with three PCB technical mixtures manufactured in Japan (KC600) and the USA (Aroclor 1260 and Aroclor 1262). The PCB pollution in their downstream areas including the coastal area was evidently affected by the formal and informal recycling activities through river runoff. The ecological risk assessments showed that PCBs in soils and sediments in the Lian River Basin could cause adverse ecotoxicological consequences to humans and aquatic organisms.
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Affiliation(s)
- Jingchun Shi
- Guangdong Provincial Key Laboratory of Marine Biotechnology, Institute of Marine Science, Shantou University, Shantou, Guangdong 515063, China
| | - Linlin Huang
- Guangdong Provincial Key Laboratory of Marine Biotechnology, Institute of Marine Science, Shantou University, Shantou, Guangdong 515063, China
| | - Edmond Sanganyado
- Guangdong Provincial Key Laboratory of Marine Biotechnology, Institute of Marine Science, Shantou University, Shantou, Guangdong 515063, China; Department of Applied Sciences, Northumbria University, Newcastle upon Tyne NE1 8ST, UK.
| | - Jiezhang Mo
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, Special Administrative Region of China
| | - Hongzhi Zhao
- College of Environmental Science & Engineering, Nankai University, 38 Tongyan Road, Jinnan District, Tianjin 300350, China
| | - Li Xiang
- State Key Laboratory of Environmental and Biological Analysis, Hong Kong Baptist University, Kowloon 999077, Hong Kong, Special Administrative Region of China
| | - Ming Hung Wong
- Consortium on Health, Environment, Education and Research (CHEER), The Education University of Hong Kong, Tai Po, Hong Kong, Special Administrative Region of China
| | - Wenhua Liu
- Guangdong Provincial Key Laboratory of Marine Biotechnology, Institute of Marine Science, Shantou University, Shantou, Guangdong 515063, China; Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou 511458, China.
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Yang M, Guo X, Ishizu M, Miyazawa Y. The Kuroshio Regulates the Air-Sea Exchange of PCBs in the Northwestern Pacific Ocean. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:12307-12314. [PMID: 35969807 PMCID: PMC9850904 DOI: 10.1021/acs.est.2c03459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 08/02/2022] [Accepted: 08/03/2022] [Indexed: 06/15/2023]
Abstract
Calculating accurate air-sea fluxes for polychlorinated biphenyls (PCBs) is an essential condition for evaluating their transport in the atmosphere. A three-dimensional hydrodynamic-ecosystem-PCB coupled model was developed for the northwestern Pacific Ocean to assess the air-sea fluxes of four PCBs and examine the influences of ocean currents on the fluxes. The model revealed a fine structure in the air-sea flux that is sensitive to the Kuroshio, a western boundary current with a high surface speed. Intense downward and upward fluxes (-23.6 to 44.75 ng m-2 d-1 for ∑4PCBs) can be found in the Kuroshio region south of Japan and the Kuroshio Extension east of Japan, respectively. In strong (weak) current regions, it takes ∼4 and ∼1 days (1-3 and 3-12 days) for dissolved PCBs to reach an equilibrium in scenarios where only air-sea exchange or only ocean advection is considered, respectively. In strong current regions, the ocean advection has a shorter response time than the air-sea exchange, indicating that dissolved PCBs from upstream carried by strong current can easily change the downstream concentration by disrupting the equilibrium with original air-sea exchange and induce new air-sea fluxes there. Therefore, strong western boundary currents should be correctly considered in future atmospheric transport models for PCBs.
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Affiliation(s)
- Min Yang
- Graduate
School of Science and Engineering, Ehime
University, 3 Bunkyo-Cho, Matsuyama 790-8577, Japan
| | - Xinyu Guo
- Center
for Marine Environmental Studies, Ehime
University, 2-5 Bunkyo-Cho, Matsuyama 790-8577, Japan
- Application
Laboratory, Japan Agency for Marine-Earth Science and Technology, 3173-25, Showa-machi, Kanazawa-ku, Yokohama-City, Kanagawa 236-0001, Japan
| | - Miho Ishizu
- Center
for Climate Physics, Institute for Basic
Science, Busan 46241, Republic of Korea
- Pusan
National University, Tonghapgigyegwan Bldg 2 Busandaehak-ro, 63 beon-gil, Geumjeong-gu, Busan 46241, Republic
of Korea
| | - Yasumasa Miyazawa
- Application
Laboratory, Japan Agency for Marine-Earth Science and Technology, 3173-25, Showa-machi, Kanazawa-ku, Yokohama-City, Kanagawa 236-0001, Japan
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Wu Y, Liu X, Dong Q, Xiao M, Li B, Topalović O, Tao Q, Tang X, Huang R, Chen G, Li H, Chen Y, Feng Y, Wang C. Remediation of petroleum hydrocarbons-contaminated soil: Analysis based on Chinese patents. CHEMOSPHERE 2022; 297:134173. [PMID: 35276108 DOI: 10.1016/j.chemosphere.2022.134173] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 02/21/2022] [Accepted: 02/27/2022] [Indexed: 06/14/2023]
Abstract
Increasing soil petroleum hydrocarbons (PHs) pollution have caused world-wide concerns. The removal of PHs from soils mainly involves physical, chemical, biological processes and their combinations. To date, most reviews in this field based on research articles, but limited papers focused on the integration of remediation technologies from the perspective of patents. In this study, 20-years Chinese patents related to the remediation of soil PHs were comprehensively analyzed. It showed an increasing number of patent applications and the patents' quantity were positively correlated with Chinese GDP over the years, suggesting the more the economy developed the more environmental problems and corresponding solutions emerged. In addition, chemical technologies were mostly used in a combination to achieve faster and better effects, while the physical technologies were often used alone due to high costs. In all PHs remediation techniques, bacteria-based bioremediation was the most used from 2000 to 2019. Bacillus spp. and Pseudomonas spp. were the most used bacteria for PHs treatment because these taxa were widely harboring functions such as biosurfactant production and hydrocarbon degradation. The future research on joint technologies combining microbial and physicochemical ones for better remediation effect and application are highly encouraged.
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Affiliation(s)
- Yingjie Wu
- College of Resources, Sichuan Agricultural University, Chengdu, 611130, China
| | - Xipeng Liu
- Microbial Ecology Cluster, Genomics Research in Ecology and Evolution in Nature (GREEN), Groningen Institute for Evolutionary Life Sciences (GELIFES), University of Groningen, 9747, AG Groningen, the Netherlands
| | - Qin Dong
- College of Resources, Sichuan Agricultural University, Chengdu, 611130, China
| | - Meijuan Xiao
- College of Resources, Sichuan Agricultural University, Chengdu, 611130, China
| | - Bing Li
- College of Resources, Sichuan Agricultural University, Chengdu, 611130, China
| | - Olivera Topalović
- Department of Agroecology, Aarhus University, Forsøgsvej 1, 4200, Slagelse, Denmark
| | - Qi Tao
- College of Resources, Sichuan Agricultural University, Chengdu, 611130, China
| | - Xiaoyan Tang
- College of Resources, Sichuan Agricultural University, Chengdu, 611130, China
| | - Rong Huang
- College of Resources, Sichuan Agricultural University, Chengdu, 611130, China
| | - Guangdeng Chen
- College of Resources, Sichuan Agricultural University, Chengdu, 611130, China
| | - Huanxiu Li
- College of Horticulture, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yulan Chen
- Liangshan Branch of Sichuan Provincial Tobacco Company, Xichang, 615000, China
| | - Ying Feng
- Key Laboratory of Environment Remediation and Ecological Health of Ministry of Education, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China.
| | - Changquan Wang
- College of Resources, Sichuan Agricultural University, Chengdu, 611130, China.
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Zafarani GG, Karbalaei S, Golshani R, Pustokhina I, Walker TR. Baseline occurrence, distribution and sources of PAHs, TPH, and OCPs in surface sediments in Gorgan Bay, Iran. MARINE POLLUTION BULLETIN 2022; 175:113346. [PMID: 35114549 DOI: 10.1016/j.marpolbul.2022.113346] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 01/08/2022] [Accepted: 01/10/2022] [Indexed: 06/14/2023]
Abstract
Baseline polycyclic aromatic hydrocarbons (PAHs), total petroleum hydrocarbons (TPH) and organochlorine pesticides (OCPs) in surface sediments were measured in Gorgan Bay, Iran. Total PAHs, TPH, and OCPs concentrations ranged between 13.70 and 23.68 ng g-1, 2.97 to 11.51 μg g-1 dry weight, and below detection to 1.41 ng g-1, respectively. Benzo [k] fluoranthene and anthracene had the highest (BkF; 19.77 ± 0.08 ng g-1), and lowest (Ant; 4.38 ± 1.72 ng g-1) individual PAH concentrations, respectively. The most abundant OCPs were β-Endosulfan, followed by methoxychlor and endrin. PAH isomeric ratios in sediments revealed that contamination originated from mixed sources, with a strong indication of pyrogenic sources. Ecological risk assessments based on sediment quality guidelines (SQGs) suggested that individual PAHs and OCPs posed low ecological risks in Gorgan Bay.
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Affiliation(s)
- Ghasem Ghorbanzadeh Zafarani
- Research Center for Environment and Sustainable Development (RCESD), Iranian Department of Environment, Tehran 141551156, Iran.
| | - Samaneh Karbalaei
- Research Center for Environment and Sustainable Development (RCESD), Iranian Department of Environment, Tehran 141551156, Iran
| | | | - Inna Pustokhina
- Sechenov First Moscow State Medical University, Department of Propaedeutics of Dental Diseases, Moscow, Russia
| | - Tony R Walker
- School for Resource and Environmental Studies, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada
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Enhanced degradation of petroleum hydrocarbons in soil by FeS@BC activated persulfate and its mechanism. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120060] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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11
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Cui M, Xu S, Song W, Ye H, Huang J, Liu B, Dong B, Xu Z. Trace metals, polycyclic aromatic hydrocarbons and polychlorinated biphenyls in the surface sediments from Sanya River, China: Distribution, sources and ecological risk. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 294:118614. [PMID: 34863889 DOI: 10.1016/j.envpol.2021.118614] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 11/21/2021] [Accepted: 11/29/2021] [Indexed: 06/13/2023]
Abstract
The urban inland river ecosystems are now facing comprehensive pollution and governance pressures. Up to now, few works related to the multiple pollution assessment of trace metals, polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs) for the urban inland river sediments have been reported in China. Our study investigated the spatial distribution, ecological risk and potential sources of trace metals, PAHs and PCBs in surface sediment collected from 20 sampling sites of Sanya River, Hainan Province, China. The pollution status and potential ecological risk of trace metals were evaluated using the contamination indexes including geoaccumulation index (Igeo), individual potential ecological risk (Eri), potential ecological risk index (RI) and pollution load index (PLI). Considering the carcinogenicity and toxicity of PAHs and PCBs to human health and the ecological environment, we also analyzed the distributions, sources and adverse biological effects of PAHs and PCBs according to the sediment quality guidelines (SQGs), principal component analysis (PCA) and other source analysis. This study revealed that the surface sediments in Sanya River were extremely slight pollution and showed a very low ecological risk according to Igeo, Eri, PLI and RI results for trace metals. Besides, PAHs and PCBs pollution detected may not pose considerable adverse biological effect to ecological environment in a foreseeable period on the basis of comprehensive research results. The overall surface sediments quality of the Sanya River not seem to pose a serious pollution and ecological risk based on the evaluation results of multiple pollution factors. The study provided detailed information on the multiple pollution status and location of surface sediments, one of the key environmental indicators of international tourism cities, in the Sanya River, which would be useful for the water quality improvement of Sanya River and the environmental remediation of the other coastal ecosystems from different regions.
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Affiliation(s)
- Mengke Cui
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China
| | - Shiliang Xu
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China; Shanghai Municipal Engineering Design Institute (Group) Co., Ltd., Shanghai, 200092, PR China
| | - Wenqing Song
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China; Shanghai Municipal Engineering Design Institute (Group) Co., Ltd., Shanghai, 200092, PR China
| | - Huibin Ye
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China
| | - Jialiang Huang
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China; YANGTZE Eco-Environment Engineering Research Center, China Three Gorges Corporation, Beijing, 100038, PR China
| | - Binhan Liu
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China
| | - Bin Dong
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China; YANGTZE Eco-Environment Engineering Research Center, China Three Gorges Corporation, Beijing, 100038, PR China.
| | - Zuxin Xu
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China
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12
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Chen MY, Liu HY, Luo XJ, Mai BX, Lu FH. Investigating the spatial distribution of polychlorinated biphenyls in sediment in the Pearl River Delta, South China. ENVIRONMENTAL MONITORING AND ASSESSMENT 2021; 193:321. [PMID: 33945020 DOI: 10.1007/s10661-021-09072-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 04/11/2021] [Indexed: 06/12/2023]
Abstract
One hundred forty-three surface sediment (0-5 cm depth) samples were collected from locations representing industrialized areas, less-industrialized areas, and e-waste recycling areas in the Pearl River Delta (PRD). The spatial distribution of polychlorinated biphenyls (PCBs) and their potential adverse effects on aquatic organisms were investigated. The average PCB concentration in the less-industrialized areas (background) in the PRD was approximately 10 ng/g dry weight (dw), which was generally half that found in the industrialized areas (approximately 22 ng/g dw). Severe PCB contamination, with concentrations ranging from 1000 to 26500 ng/g dw, was found in pond sediments collected from e-waste recycling areas. It is very likely that such contamination would have had adverse effects on the aquatic biota there. PCBs in the e-waste recycling areas were dominated by penta- and hex-PCB congeners, which made them significantly different from those found in other regions, where tri- and tetra-PCB congeners were predominant. Higher abundances of less chlorinated congeners were seen in the less-industrialized areas compared to the industrialized areas. Differences in the transport abilities of different congeners, together with dechlorination of higher chlorinated congeners, is the most likely reasons for this.
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Affiliation(s)
- Man-Ying Chen
- Guangdong Testing Institute of Product Quality Supervision, Guangzhou, 528300, China.
- State Key Laboratory of Organic Geochemistry and Guangdong Key Laboratory of Environmental Protection and Resources Utilization, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China.
| | - Hong-Yin Liu
- College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 200433, China
| | - Xiao-Jun Luo
- State Key Laboratory of Organic Geochemistry and Guangdong Key Laboratory of Environmental Protection and Resources Utilization, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China
| | - Bi-Xian Mai
- State Key Laboratory of Organic Geochemistry and Guangdong Key Laboratory of Environmental Protection and Resources Utilization, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China
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Mohapatra B, Phale PS. Microbial Degradation of Naphthalene and Substituted Naphthalenes: Metabolic Diversity and Genomic Insight for Bioremediation. Front Bioeng Biotechnol 2021; 9:602445. [PMID: 33791281 PMCID: PMC8006333 DOI: 10.3389/fbioe.2021.602445] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 02/09/2021] [Indexed: 12/21/2022] Open
Abstract
Low molecular weight polycyclic aromatic hydrocarbons (PAHs) like naphthalene and substituted naphthalenes (methylnaphthalene, naphthoic acids, 1-naphthyl N-methylcarbamate, etc.) are used in various industries and exhibit genotoxic, mutagenic, and/or carcinogenic effects on living organisms. These synthetic organic compounds (SOCs) or xenobiotics are considered as priority pollutants that pose a critical environmental and public health concern worldwide. The extent of anthropogenic activities like emissions from coal gasification, petroleum refining, motor vehicle exhaust, and agricultural applications determine the concentration, fate, and transport of these ubiquitous and recalcitrant compounds. Besides physicochemical methods for cleanup/removal, a green and eco-friendly technology like bioremediation, using microbes with the ability to degrade SOCs completely or convert to non-toxic by-products, has been a safe, cost-effective, and promising alternative. Various bacterial species from soil flora belonging to Proteobacteria (Pseudomonas, Pseudoxanthomonas, Comamonas, Burkholderia, and Novosphingobium), Firmicutes (Bacillus and Paenibacillus), and Actinobacteria (Rhodococcus and Arthrobacter) displayed the ability to degrade various SOCs. Metabolic studies, genomic and metagenomics analyses have aided our understanding of the catabolic complexity and diversity present in these simple life forms which can be further applied for efficient biodegradation. The prolonged persistence of PAHs has led to the evolution of new degradative phenotypes through horizontal gene transfer using genetic elements like plasmids, transposons, phages, genomic islands, and integrative conjugative elements. Systems biology and genetic engineering of either specific isolates or mock community (consortia) might achieve complete, rapid, and efficient bioremediation of these PAHs through synergistic actions. In this review, we highlight various metabolic routes and diversity, genetic makeup and diversity, and cellular responses/adaptations by naphthalene and substituted naphthalene-degrading bacteria. This will provide insights into the ecological aspects of field application and strain optimization for efficient bioremediation.
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Affiliation(s)
- Balaram Mohapatra
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Prashant S Phale
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, India
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Cavalcanti JVFL, Fraga TJM, Loureiro Leite MDA, Dos Santos E Silva DF, de Lima VF, Schuler ARP, do Nascimento CWA, da Motta Sobrinho MA. In-depth investigation of Sodium percarbonate as oxidant of PAHs from soil contaminated with diesel oil. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 268:115832. [PMID: 33120152 DOI: 10.1016/j.envpol.2020.115832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 09/04/2020] [Accepted: 10/11/2020] [Indexed: 06/11/2023]
Abstract
Sodium percarbonate (SPC, 2Na2CO3∙3H2O2), is a compound that can be used under multiple environmental applications. In this work, SPC was employed as oxidant in the treatment of soil contaminated with diesel oil. The soil samples were collected during the earthmoving stage of RNEST Oil Refinery (Petrobras), Brazil. Then, the samples were air-dried, mixed and characterized. Subsequently, raw soil was contaminated with diesel and treated by photo-Fenton reaction (H2O2/Fe2+/UV). SPC played a significant role in the generation of hydroxyl radicals under the catalytic effect of ferrous ions (Fe2+), hydrogen peroxide (H2O2) and radiation. These radicals provoked the photodegradation of polycyclic aromatic hydrocarbons (PAHs), in the soil remediation. A factorial design 33 was carried out to assess the variables which most influenced the decrease in total organic carbon (TOC). The study was performed with the following variables: initial concentration of [H2O2] and [Fe2+], between 190.0 and 950.0 mmol L-1 and 0.0-14.4 mmol L-1, respectively. UV radiation was supplied from sunlight, blacklight lamps, and system without radiation. All experiments were performed with 5.0 g of contaminated soil in 50.0 mL of solution. The initial concentration of Fe2+ showed the statistically most significant effect. The oxidation efficiency evaluated in the best condition showed a decrease from 34,765 mg kg-1 to 15,801 mg kg-1 in TOC and from 85.750 mg kg-1 to 20.770 mg kg-1 in PAHs content. Moreover, the sums of low and high molecular weight polycyclic aromatic hydrocarbons (LMW-PAHs and HMW-PAHs) were 19.537 mg kg-1 and 1.233 mg kg-1, respectively. Both values are within the limits recommended by the United Sates Environmental Protection Agency (USEPA) and evidenced the satisfactory removal of PAHs from contaminated soil, being an alternative to classic oxidation protocols.
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Affiliation(s)
| | - Tiago José Marques Fraga
- Department of Chemical Engineering, Federal University of Pernambuco, 1235 Prof. Moraes Rego Avenue, Cidade Universitária, ZIP code, 50670-901, Recife, Brazil.
| | - Mirella de Andrade Loureiro Leite
- Department of Chemical Engineering, Federal University of Pernambuco, 1235 Prof. Moraes Rego Avenue, Cidade Universitária, ZIP code, 50670-901, Recife, Brazil
| | - Daniella Fartes Dos Santos E Silva
- Department of Chemical Engineering, Federal University of Pernambuco, 1235 Prof. Moraes Rego Avenue, Cidade Universitária, ZIP code, 50670-901, Recife, Brazil
| | - Valmir Félix de Lima
- Department of Chemical Engineering, Federal University of Pernambuco, 1235 Prof. Moraes Rego Avenue, Cidade Universitária, ZIP code, 50670-901, Recife, Brazil
| | - Alexandre Ricardo Pereira Schuler
- Department of Chemical Engineering, Federal University of Pernambuco, 1235 Prof. Moraes Rego Avenue, Cidade Universitária, ZIP code, 50670-901, Recife, Brazil
| | | | - Maurício Alves da Motta Sobrinho
- Department of Chemical Engineering, Federal University of Pernambuco, 1235 Prof. Moraes Rego Avenue, Cidade Universitária, ZIP code, 50670-901, Recife, Brazil.
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15
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Ihunwo OC, Ibezim-Ezeani MU, DelValls TA. Human health and ecological risk of polycyclic aromatic hydrocarbons (PAHs) in sediment of Woji creek in the Niger Delta region of Nigeria. MARINE POLLUTION BULLETIN 2021; 162:111903. [PMID: 33321306 DOI: 10.1016/j.marpolbul.2020.111903] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 11/27/2020] [Accepted: 12/01/2020] [Indexed: 06/12/2023]
Abstract
Human health risk was determined by assessing risk due to dermal contact with the sediment and Benzo [a] pyrene -equivalent concentrations (BaP-TEQ- carcinogenic equivalents and BaP-MEQ- mutagenic equivalents). Ecological risk of PAHs in the sediment was determined by comparing PAHs concentrations to effect range low (ERL) and effect range median (ERM); to estimate the risk associated with the combined effects of PAHs, mean ERM quotient (mERMq) was calculated. Results revealed that hazard index (HI) due to dermal contact of the sediment for adults are 596 and 73.84 for children. Similarly, cancer risk for adults was all >10-1 and was within 10-3 ≤ 10-1 for children, for every compound; the sum of cancer risk for adults and children were 8.26 and 1.022 respectively.
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Affiliation(s)
- Owhonda Chikeru Ihunwo
- Niger Delta Aqua Research Group, Department of Biochemistry and Chemistry Technology, School of Science Laboratory Technology, University of Port Harcourt, Port Harcourt P. M. B. 5323, Choba, Rivers State, Nigeria
| | - Millicent Uzoamaka Ibezim-Ezeani
- Niger Delta Aqua Research Group, Department of Biochemistry and Chemistry Technology, School of Science Laboratory Technology, University of Port Harcourt, Port Harcourt P. M. B. 5323, Choba, Rivers State, Nigeria; Department of Pure and Industrial Chemistry, University of Port Harcourt, P. M. B. 5323, Choba, Rivers State, Nigeria.
| | - Tomás Angel DelValls
- Niger Delta Aqua Research Group, Department of Biochemistry and Chemistry Technology, School of Science Laboratory Technology, University of Port Harcourt, Port Harcourt P. M. B. 5323, Choba, Rivers State, Nigeria; Department of Ecotoxicology, Santa Cecília University (UNISANTA), Santos, São Paulo, Brazil
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16
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Cheng JO, Liu KK, Ko FC. Environmental assessment of persistent organic pollutants in surface sediments of the Danshui River basin, Taipei, Taiwan. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:44165-44176. [PMID: 32757130 DOI: 10.1007/s11356-020-10315-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 07/28/2020] [Indexed: 06/11/2023]
Abstract
Surface sediments from the Danshui River basin were collected and analyzed for persistent organic pollutants (POPs), including polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), and dichloro-diphenyl-trichloroethanes (DDTs). The total concentrations of each category ranged from 96 to 3803 ng g-1 for PAHs, 0.02 to 54.9 ng g-1 for PCBs, and from below the detection limit to 10.3 ng g-1 for DDTs. These values are within the ranges observed for river and estuarine sediments of industrial and urbanized areas in Taiwan and worldwide. A decreasing trend of POP levels was observed in comparison with the levels reported in previous studies. Significant correlations between the levels of compounds and black carbon (BC) were found, suggesting that these POPs and BC may have similar transport processes. Based on sediment quality guidelines (SQGs), the ecological risk posed by these POPs toward sediment-dwelling organisms in the Danshui River basin is relatively low. Long-term monitoring of contaminant levels is necessary to develop appropriate management tools due to the importance of the Danshui river basin as a water source for metropolitan areas.
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Affiliation(s)
- Jing-O Cheng
- National Museum of Marine Biology and Aquarium, Checheng, Pingtung, Taiwan
| | - Kon-Kee Liu
- Graduate Institute of Hydrological and Oceanic Sciences, National Central University, Chung-Li, Taiwan
| | - Fung-Chi Ko
- National Museum of Marine Biology and Aquarium, Checheng, Pingtung, Taiwan.
- Graduate Institute of Marine Biology, National Dong Hwa University, Checheng, Pingtung, Taiwan.
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17
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Boente C, Baragaño D, Gallego JR. Benzo[a]pyrene sourcing and abundance in a coal region in transition reveals historical pollution, rendering soil screening levels impractical. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 266:115341. [PMID: 32854063 DOI: 10.1016/j.envpol.2020.115341] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 07/31/2020] [Accepted: 07/31/2020] [Indexed: 06/11/2023]
Abstract
Benzo[a]pyrene (BaP) is a hazardous compound for human health and for environmental compartments. Its transfer and deposition through the atmosphere affects soil quality. In this context, we quantified the content of BaP and other Polycyclic Aromatic Hydrocarbons (PAHs) in the soils of a prominent Coal Region in Transition to test whether the soil screening levels in force are realistic and whether they reflect the complexity of regions closely linked to heavy industries and mining. In this regard, soil screening levels are thresholds often established without considering historical anthropogenic activities that affect soil (diffuse pollution). The 150 soil samples studied showed a notable content of high molecular weight PAHs, and BaP surpassed the threshold levels in practically the entire area. PAH-parent diagrams revealed a relatively homogenous fingerprint of four clusters obtained in a multivariate statistical study. In addition, molecular diagnostic ratios pointed to coal combustion as the main pollution source, whereas only some outliers appeared to be related to specific spills. A BaP threshold was calculated to be 0.24 mg kg-1, over 10 times the limit established in Spain. Finally, a factor analysis revealed a positive correlation of BaP with elements usually emitted in coal combustion processes, such as Tl and V. This observation fosters the hypothesis of a historical and indelible pollution fingerprint in soils whose sources, characteristics and potential environmental and health concerns deserve further attention. All things considered, caution should be taken when using soil screening levels in regions associated with coal exploitation and heavy industry.
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Affiliation(s)
- C Boente
- INDUROT and Environmental Technology, Biotechnology and Geochemistry Group Campus de Mieres, Universidad de Oviedo, 33600, Mieres, Spain
| | - D Baragaño
- INDUROT and Environmental Technology, Biotechnology and Geochemistry Group Campus de Mieres, Universidad de Oviedo, 33600, Mieres, Spain
| | - J R Gallego
- INDUROT and Environmental Technology, Biotechnology and Geochemistry Group Campus de Mieres, Universidad de Oviedo, 33600, Mieres, Spain.
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18
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Sakizadeh M. Spatial distribution and source identification together with environmental health risk assessment of PAHs along the coastal zones of the USA. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2020; 42:3333-3350. [PMID: 32328896 DOI: 10.1007/s10653-020-00578-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Accepted: 04/10/2020] [Indexed: 06/11/2023]
Abstract
Identification of polycyclic aromatic hydrocarbons (PAHs) sources and hot spot areas are the primary driving forces for their control in the environment. This study was performed in the US coastal areas to identify the major sources of PAHs and investigate the spatial distribution associated with carcinogenic PAHs (CPAHs) using a novel spatial forecasting method for the first time in environmental sciences. Diagnostic ratios of PAHs demonstrated the predominance of pyrogenic sources compared to petrogenic sources within the area of study. Five factors were extracted using positive matrix factorization method with respect to 16 priority PAHs, indicating the dominance of pyrogenic versus petrogenic sources mainly as a result of combustion products in the environment. The total toxic benzo[a]pyrene equivalency (TEQ) for all CPAHs ranged from 0.03 to 10,456 ng/g containing a mean of 199 ng/g. The contribution of each CPAH to the total TEQ varied according to the following order: benzo[a]pyrene (65.4%), dibenzo[a,h]anthracene (12%), benzo[b]fluoranthene (10%), benzo[a]anthracene (6%), indeno[1,2,3-c,d]pyrene (6%), benzo[k]fluoranthene (0.5%) and chrysene (0.1%). The spatial analysis by fixed rank kriging (FRK) highlighted a similar pattern associated with all of the CPAHs with higher values in the northern part of New Jersey State. In particular, Passaic River, Upper New York/New Jersey Harbor, Mullica River, Schuylkill River, Newark Bay and Christina River were the most contaminated stations regarding the observed values of CPAHs.
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Affiliation(s)
- Mohammad Sakizadeh
- Department for Management of Science and Technology Development, Ton Duc Thang University, Ho Chi Minh City, Vietnam.
- Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Vietnam.
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19
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Zhang T, Liu Y, Zhong S, Zhang L. AOPs-based remediation of petroleum hydrocarbons-contaminated soils: Efficiency, influencing factors and environmental impacts. CHEMOSPHERE 2020; 246:125726. [PMID: 31901666 DOI: 10.1016/j.chemosphere.2019.125726] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Revised: 12/16/2019] [Accepted: 12/20/2019] [Indexed: 06/10/2023]
Abstract
Petroleum hydrocarbons are a class of anthropogenic compounds including alkanes, aromatic hydrocarbons, resins, asphaltenes and other organic matters, and soil pollution caused by petroleum hydrocarbons has drawn increasing interest in recent years. Multiple advanced oxidation processes (AOPs) are emerging to remediate petroleum hydrocarbons-contaminated soils, while very few studies have focused on the features of AOPs applied in soils. This review aims to provide an updated overview of the state of the science about the efficiency, influencing factors and environmental implications of AOPs. The key findings from this review include: 1) cyclodextrin and its derivatives can be used to synthesize targeting reagents; 2) soil organic matter (SOM), glucose and cement can activate persulfate; 3) SOM affects redox circumstance in soil and could be further developed for enhancing the catalysis effect of transition metals; 4) non-thermal plasma and wet oxidation are promising methods of AOPs to remove petroleum hydrocarbons from soil; 5) the occurrence, fate, and transformation of intermediates during the degradation of petroleum hydrocarbons in soil should be considered more. Overall, this review reveals an urgent need to develop the cost-effective remedial strategies for petroleum hydrocarbons contaminated soils, and to advance our knowledge on the generation, transport and propagation of radicals in soils.
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Affiliation(s)
- Tong Zhang
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, China
| | - Yuanyuan Liu
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, China.
| | - Shan Zhong
- School of Life and Environmental Sciences, Guilin University of Electronic Technology, Guilin, 541004, China
| | - Lishan Zhang
- School of Life and Environmental Sciences, Guilin University of Electronic Technology, Guilin, 541004, China
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20
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Fang C, Bo J, Zheng R, Hong F, Kuang W, Jiang Y, Chen J, Zhang Y, Segner H. Biomonitoring of aromatic hydrocarbons in clam Meretrix meretrix from an emerging urbanization area, and implications for human health. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 192:110271. [PMID: 32044605 DOI: 10.1016/j.ecoenv.2020.110271] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Revised: 01/27/2020] [Accepted: 01/30/2020] [Indexed: 05/24/2023]
Abstract
Pollution with total petroleum hydrocarbons (TPHs) is a global concern and particularly in coastal environments. Polycyclic aromatic hydrocarbons (PAHs) are regarded as the most toxic components of TPHs and they can also be derived from other sources. Fangcheng Port is considered as a representative emerging coastal city in China, but the status, sources, and hazards to organisms and humans with respect to contamination with PAHs and TPHs are unknown in the coastal regions of this area. Therefore, in this study, we cloned cytochrome P450 family genes (CYP1A1, CYP3A, and CYP4) and heat shock protein 70 gene (HSP70) in the clam Meretrix meretrix as well as optimizing the method for measuring the 7-ethoxyresorufin O-deethylase activity. These molecular indicators and four specific physiological indexes were found to be appropriate biomarkers for indicating the harmful effects of PAHs and TPHs on clams after exposure to the crude oil water-soluble fraction. In field monitoring surveys, we found that the 2- and 3-ring PAHs were dominant in the clams whereas the 4- to 6-ring PAHs were dominant in the sediments at each site. The PAH levels (3.63-12.77 ng/g wet weight) in wild clams were lower, whereas the TPH levels (13.25-70.50 μg/g wet weight) were higher compared with those determined previous in China and elsewhere. The concentrations of PAHs and TPHs in the sediments (19.20-4215.76 ng/g and 3.65-866.40 μg/g dry weight) were moderate compared with those in other global regions. Diagnostic ratio analysis demonstrated that the PAHs were derived mainly from pyrogenic sources. The TPHs may have come primarily from industrial effluents, land and maritime transportation, or fishing activities. The Integrated Biomarker Response version 2 indexes indicated that the clams collected from site S5 exhibited the most harmful effects due to contamination by PAHs and TPHs. Human health risk assessments demonstrated that the risks due to PAHs and TPHs following the consumption of clams can be considered acceptable. Our results suggest that continuous monitoring of contamination by PAHs and TPHs is recommended in this emerging coastal city as well as assessing their human health risks.
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Affiliation(s)
- Chao Fang
- Laboratory of Marine Biology and Ecology, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, China; Field Station of Coastal Wetland Ecosystem Research and Observation in Beibu Bay, Ministry of Natural Resources, Beihai, 536015, China
| | - Jun Bo
- Laboratory of Marine Biology and Ecology, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, China.
| | - Ronghui Zheng
- Laboratory of Marine Biology and Ecology, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, China
| | - Fukun Hong
- Laboratory of Marine Biology and Ecology, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, China
| | - Weiming Kuang
- Laboratory of Marine Chemistry and Environmental Monitoring Technology, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, China
| | - Yulu Jiang
- Laboratory of Marine Biology and Ecology, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, China
| | - Jincan Chen
- Laboratory of Marine Biology and Ecology, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, China
| | - Yusheng Zhang
- Laboratory of Marine Biology and Ecology, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, China
| | - Helmut Segner
- Centre for Fish and Wildlife Health, Department of Infectious Diseases and Pathobiology, University of Bern, Bern, Switzerland
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21
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Gu YG, Ke CL, Gao YP, Liu Q, Li YF. Nonmetric multidimensional scaling and adverse effects on aquatic biota of polycyclic aromatic hydrocarbons in sediments: A case study of a typical aquaculture wetland, China. ENVIRONMENTAL RESEARCH 2020; 182:109119. [PMID: 31927246 DOI: 10.1016/j.envres.2020.109119] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 12/13/2019] [Accepted: 01/04/2020] [Indexed: 06/10/2023]
Abstract
Aquaculture wetlands, particularly those located within urban areas, are fragile ecosystems which are generally heavily impacted by urban and aquaculture activities. However, there are, to date, no reports on adverse effects related to polycyclic aromatic hydrocarbons (PAHs) in sediments from aquaculture wetlands in metropolitan areas. The characterization, sources, and incidence of adverse effects on aquatic biota of PAHs were studied in the riverine and estuarine sediments of the Rongjiang River in an aquaculture wetland in Chaoshan metropolis. The total PAH concentrations varied from 46.0 to 1665.2 ng/g (dry weight), with a mean of 246.4 ng/g, indicating lower concentrations than those of other comparable rivers and estuaries worldwide. High-molecular-weight PAHs were the major PAH species, with fluorene, benzo(b)fluoranthene, and benzo(a)pyrene as the dominant components. These PAHs are likely to be mainly derived from oil and coal/biomass combustion. Probability risk assessment indicated a moderate PAH ecological risk in the Rongjiang River and its estuary (RJE). Accordingly, a comprehensive management plan should be established to ensure sustainable aquaculture wetlands.
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Affiliation(s)
- Yang-Guang Gu
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, 510300, China; Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, Guangzhou, 510300, China; Key Laboratory of Open-Sea Fishery Development, Ministry of Agriculture, Guangzhou, 510300, China.
| | - Chang-Liang Ke
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, 510300, China; Key Laboratory of Aquatic Product Processing, Ministry of Agriculture, Guangzhou, 510300, China
| | - Yan-Peng Gao
- Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, 510006, China; School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, China
| | - Qi Liu
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, 510300, China; Key Laboratory of Aquatic Product Processing, Ministry of Agriculture, Guangzhou, 510300, China
| | - Ya-Fang Li
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, 510300, China; Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, Guangzhou, 510300, China
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22
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Vane CH, Kim AW, Moss-Hayes V, Turner G, Mills K, Chenery SR, Barlow TS, Kemp AC, Engelhart SE, Hill TD, Horton BP, Brain M. Organic pollutants, heavy metals and toxicity in oil spill impacted salt marsh sediment cores, Staten Island, New York City, USA. MARINE POLLUTION BULLETIN 2020; 151:110721. [PMID: 32056581 DOI: 10.1016/j.marpolbul.2019.110721] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 11/01/2019] [Accepted: 11/06/2019] [Indexed: 06/10/2023]
Abstract
Sediment cores from Staten Island's salt marsh contain multiple historical oil spill events that impact ecological health. Microtox solid phase bioassay indicated moderate to high toxicity. Multiple spikes of TPH (6524 to 9586 mg/kg) and Σ16 PAH (15.5 to 18.9 mg/kg) were co-incident with known oil spills. A high TPH background of 400-700 mg/kg was attributed to diffuse sources. Depth-profiled metals Cu (1243 mg/kg), Zn (1814 mg/kg), Pb (1140 mg/kg), Ni (109 mg/kg), Hg (7 mg/kg), Cd 15 (mg/kg) exceeded sediment quality guidelines confirming adverse biological effects. Changes in Pb206/207 suggested three metal contaminant sources and diatom assemblages responded to two contamination events. Organic and metal contamination in Saw Mill Creek Marsh may harm sensitive biota, we recommend caution in the management of the 20-50 cm sediment interval because disturbance could lead to remobilisation of pre-existing legacy contamination into the waterway.
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Affiliation(s)
- Christopher H Vane
- British Geological Survey, Environmental Science Centre, Keyworth, Nottingham NG12 5GG, UK.
| | - Alexander W Kim
- British Geological Survey, Environmental Science Centre, Keyworth, Nottingham NG12 5GG, UK
| | - Vicky Moss-Hayes
- British Geological Survey, Environmental Science Centre, Keyworth, Nottingham NG12 5GG, UK
| | - Grenville Turner
- British Geological Survey, Environmental Science Centre, Keyworth, Nottingham NG12 5GG, UK
| | - Keely Mills
- British Geological Survey, Environmental Science Centre, Keyworth, Nottingham NG12 5GG, UK
| | - Simon R Chenery
- British Geological Survey, Environmental Science Centre, Keyworth, Nottingham NG12 5GG, UK
| | - Thomas S Barlow
- British Geological Survey, Environmental Science Centre, Keyworth, Nottingham NG12 5GG, UK
| | - Andrew C Kemp
- Department of Earth and Ocean Sciences, Tufts University, Medford, MA 02155, USA
| | - Simon E Engelhart
- Department of Geography, Durham University, South Road, Durham DH1 3LE, UK
| | - Troy D Hill
- United States Department of the Interior, South Florida Natural Resources Center, Homestead, FL 33030, USA
| | - Benjamin P Horton
- Asian School of the Environment, Nanyang Technological University, Singapore
| | - Matthew Brain
- Department of Geography, Durham University, South Road, Durham DH1 3LE, UK
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23
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Yang L, Jin F, Liu G, Xu Y, Zheng M, Li C, Yang Y. Levels and characteristics of polychlorinated biphenyls in surface sediments of the Chaobai river, a source of drinking water for Beijing, China. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 189:109922. [PMID: 31784107 DOI: 10.1016/j.ecoenv.2019.109922] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 10/30/2019] [Accepted: 11/02/2019] [Indexed: 06/10/2023]
Abstract
We collected surface sediments from the Chaobai river, the dominant source of drinking water for Beijing, China, to assess the status of contamination by polychlorinated biphenyls and evaluate their sources. Total concentrations of polychlorinated biphenyls in the sediments ranged from 0.125 to 70.6 ng/g dry weight and correlated with the locations relating to painting operation such as printing factories and construction material markets. Dioxin-like polychlorinated biphenyls were present and corresponded with constituents of commercial polychlorinated biphenyl mixtures. Principal component analysis indicated two dominant sources of polychlorinated biphenyls in the sediments-deposition from airborne emissions and point-source pollution from factories. An ecological risk assessment concluded that there was only slight polychlorinated biphenyl pollution in the sediments of the Chaobai river, which was not likely to induce adverse biological effects. Our findings provide information for polychlorinated biphenyl risk assessment and recognition of the dominant sources of these compounds in drinking water in China.
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Affiliation(s)
- Lili Yang
- Key Laboratory of Agro-Product Quality and Safety, Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, 100081, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Fen Jin
- Key Laboratory of Agro-Product Quality and Safety, Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
| | - Guorui Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Yang Xu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Minghui Zheng
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Cui Li
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Yuanping Yang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of the Chinese Academy of Sciences, Beijing, 100049, China
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24
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Sakizadeh M. Novel hybrid methods applied for spatial prediction of mercury and variable selection of trace elements in coastal areas of USA. MARINE POLLUTION BULLETIN 2020; 150:110779. [PMID: 31910526 DOI: 10.1016/j.marpolbul.2019.110779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 10/19/2019] [Accepted: 11/25/2019] [Indexed: 06/10/2023]
Abstract
This study was concerned with spatial analysis of mercury (Hg) in sediment samples of the USA coastal areas using more accurate and stable hybrid approaches compared to the conventional methods. An ensemble of simulated annealing along with least angle regression (SA-LAR) was applied for selection of predictors in spatial analysis. The latest algorithm was efficient with resultant RMSE and R2 of 0.066 and 0.705 compared to 0.099 and 0.571 for the traditional method of recursive feature elimination (RFE) approach. Using Cu, Pb and As as selected variables, it was tried to improve the spatial forecasting of Hg with either a hybrid of generalized boosted regression and ordinary kriging (GBROK) or inverse distance weighting (GBRIDW). According to the results, the variance explained by cross validation (VECV) was improved from 7.52% and 9.76% for IDW and OK to 40.41% and 41.94% for the GBRIDW and GBROK methods, respectively.
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Affiliation(s)
- Mohammad Sakizadeh
- Department for Management of Science and Technology Development, Ton Duc Thang University, Ho Chi Minh City, Vietnam; Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Vietnam.
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25
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Liu A, Hong N, Zhu P, Guan Y. Characterizing petroleum hydrocarbons deposited on road surfaces in urban environments. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 653:589-596. [PMID: 30414587 DOI: 10.1016/j.scitotenv.2018.10.428] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 10/31/2018] [Accepted: 10/31/2018] [Indexed: 06/09/2023]
Abstract
Petroleum hydrocarbons are a toxic pollutant group, primarily including volatile organic compounds (VOC), semi-volatile organic compounds (SVOC) and non-volatile organic compounds (NVOC). These pollutants can be accumulated on urban roads during dry periods and then washed-off by stormwater runoff in rainy days. Unlike heavy metals and polycyclic aromatic hydrocarbons, petroleum hydrocarbons have not received an equal attention in the field of stormwater pollutant processes. This paper investigated characteristics of VOC, SVOC and NVOC pollutant loads deposited on urban roads and their influential factors using a forward stepwise regression and PROMETHEE-GAIA analysis techniques. The results indicate that the loads deposited on urban roads were NVOC > SVOC > VOC. It is also noted that the degrees of factors in influencing petroleum hydrocarbons deposited on urban roads did not equal and their order was total solids > land use type > vehicular traffic > roughness of road surfaces. The research results also showed that petroleum hydrocarbons on urban road surfaces tend to be source limiting rather than transport limiting. These outcomes can contribute to petroleum hydrocarbons polluted stormwater management, such as treatment system design and stormwater modelling approach improvement.
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Affiliation(s)
- An Liu
- College of Chemistry and Environmental Engineering, Shenzhen University, 518060 Shenzhen, China; Shenzhen Key Laboratory of Environmental Chemistry and Ecological Remediation, 518060 Shenzhen, China; Science and Engineering Faculty, Queensland University of Technology (QUT), Brisbane, Australia.
| | - Nian Hong
- College of Chemistry and Environmental Engineering, Shenzhen University, 518060 Shenzhen, China; Shenzhen Key Laboratory of Environmental Chemistry and Ecological Remediation, 518060 Shenzhen, China
| | - Panfeng Zhu
- College of Chemistry and Environmental Engineering, Shenzhen University, 518060 Shenzhen, China
| | - Yuntao Guan
- Guangdong Provincial Engineering Technology Research Centre for Urban Water Cycle and Water Environment Safety, Graduate School at Shenzhen, Tsinghua University, 518055 Shenzhen, China
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26
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Rattner BA, Lazarus RS, Bean TG, McGowan PC, Callahan CR, Erickson RA, Hale RC. Examination of contaminant exposure and reproduction of ospreys (Pandion haliaetus) nesting in Delaware Bay and River in 2015. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 639:596-607. [PMID: 29800853 DOI: 10.1016/j.scitotenv.2018.05.068] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 05/04/2018] [Accepted: 05/05/2018] [Indexed: 06/08/2023]
Abstract
A study of ospreys (Pandion haliaetus) nesting in the coastal Inland Bays of Delaware, and the Delaware Bay and Delaware River in 2015 examined spatial and temporal trends in contaminant exposure, food web transfer and reproduction. Concentrations of organochlorine pesticides and metabolites, polychlorinated biphenyls (PCBs), coplanar PCB toxic equivalents, polybrominated diphenyl ethers (PBDEs) and other flame retardants in sample eggs were generally greatest in the Delaware River. Concentrations of legacy contaminants in 2015 Delaware Bay eggs were lower than values observed in the 1970s through early 2000s. Several alternative brominated flame retardants were rarely detected, with only TBPH [bis(2-ethylhexyl)-tetrabromophthalate)] present in 5 of 27 samples at <5 ng/g wet weight. No relation was found between p,p'-DDE, total PCBs or total PBDEs in eggs with egg hatching, eggs lost from nests, nestling loss, fledging and nest success. Osprey eggshell thickness recovered to pre-DDT era values, and productivity was adequate to sustain a stable population. Prey fish contaminant concentrations were generally less than those in osprey eggs, with detection frequencies and concentrations greatest in white perch (Morone americana) from Delaware River compared to the Bay. Biomagnification factors from fish to eggs for p,p'-DDE and total PCBs were generally similar to findings from several Chesapeake Bay tributaries. Overall, findings suggest that there have been improvements in Delaware Estuary waterbird habitat compared to the second half of the 20th century. This trend is in part associated with mitigation of some anthropogenic contaminant threats.
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Affiliation(s)
- Barnett A Rattner
- U.S. Geological Survey, Patuxent Wildlife Research Center, Beltsville, MD, USA.
| | - Rebecca S Lazarus
- U.S. Geological Survey, Patuxent Wildlife Research Center, Beltsville, MD, USA
| | - Thomas G Bean
- Department of Environmental Science and Technology, University of Maryland, College Park, MD, USA
| | - Peter C McGowan
- Chesapeake Bay Field Office, U.S. Fish and Wildlife Service, Annapolis, MD, USA
| | - Carl R Callahan
- Chesapeake Bay Field Office, U.S. Fish and Wildlife Service, Annapolis, MD, USA
| | - Richard A Erickson
- U.S. Geological Survey, Upper Midwest Environmental Science Center, La Crosse, WI, USA
| | - Robert C Hale
- Virginia Institute of Marine Science, College of William and Mary, Gloucester Point, VA, USA
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