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Wang YT, Lin NH, Chang CT, Huang JC, Lin TC. Fog and rain water chemistry in a tea plantation of northern Taiwan. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:96474-96485. [PMID: 37567991 DOI: 10.1007/s11356-023-29263-5] [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: 10/20/2022] [Accepted: 08/06/2023] [Indexed: 08/13/2023]
Abstract
Tea plantations are expanding globally and many are in mountainous areas with frequent fog but few studies have examined fog chemistry in these areas. We examined chemical composition of fog and rain water at a tea plantation in northern Taiwan. Fog water was collected using a Kroneis passive cylindrical fog-water collector and rain water was collected using a 20-cm-diameter funnel. The most abundant ions were Cl- and Na+ in both fog and rain waters due to the proximity of the site to the coast. The order of abundance of other ions was NO3- > Mg2+ > SO42- > Ca2+ > NH4+ > K+ > H+ in fog water and SO42- > K+ > NO3- > NH4+ > Ca2+ > Mg2+ > H+ in rain water. The concentration enrichment ratio (fog to rain) ranged between 2.2 (K+) and 22 (Mg2+) lying between sites near major emission sources and sites in remote areas, possibly because the immediate surrounding landscape is covered with secondary forests although it is near large cities. Factor analysis highlights the influences of sea-salt aerosols on the variation of fog and rain water chemistry. Sea-salt corrections using Na+ as the sea salt tracer led to negative concentrations of Cl- and Mg2+ suggesting that assumptions involved in sea-salt corrections were not satisfied. Agriculture influence is identified as a unique factor for explaining variance of K+, NH4+, and dissolved organic nitrogen (DON) concentrations in fog water but not rain water. Ion concentrations in fog and rain water were generally higher in the weekly samples associated with air trajectories passing through the continental East Asia than those associated with oceanic trajectories pointing to the role of regional pollution sources in affecting local fog and rain water chemistry. Our study highlights greater effects of tea agriculture on fog than rain water chemistry.
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Affiliation(s)
- Yi-Tzu Wang
- Department of Life Science, National Taiwan Normal University, Taipei, 11677, Taiwan
| | - Neng-Huei Lin
- Department of Atmospheric Sciences, National Central University, Taoyuan, 32001, Taiwan
- Center for Environmental Monitoring Technology, National Central University, Taoyuan, 32001, Taiwan
| | - Chung-Te Chang
- Taiwan International Graduate Program (TIGP)-Ph.D. Program on Biodiversity, Tunghai University, Taichung, 407224, Taiwan
- Department of Life Science, Tunghai University, Taichung, 407224, Taiwan
| | - Jr-Chuan Huang
- Department of Geography, National Taiwan University, Taipei, 10617, Taiwan
| | - Teng-Chiu Lin
- Department of Life Science, National Taiwan Normal University, Taipei, 11677, Taiwan.
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Jion MMMF, Jannat JN, Mia MY, Ali MA, Islam MS, Ibrahim SM, Pal SC, Islam A, Sarker A, Malafaia G, Bilal M, Islam ARMT. A critical review and prospect of NO 2 and SO 2 pollution over Asia: Hotspots, trends, and sources. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 876:162851. [PMID: 36921864 DOI: 10.1016/j.scitotenv.2023.162851] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/06/2023] [Accepted: 03/10/2023] [Indexed: 06/18/2023]
Abstract
Nitrogen dioxide (NO2) and sulfur dioxide (SO2) are two major atmospheric pollutants that significantly threaten human health, the environment, and ecosystems worldwide. Despite this, only some studies have investigated the spatiotemporal hotspots of NO2 and SO2, their trends, production, and sources in Asia. Our study presents a literature review covering the production, trends, and sources of NO2 and SO2 across Asian countries (e.g., Bangladesh, China, India, Iran, Japan, Pakistan, Malaysia, Kuwait, and Nepal). Based on the findings of the review, NO2 and SO2 pollution are increasing due to industrial activity, fossil fuel burning, biomass burning, heavy traffic movement, electricity generation, and power plants. There is significant concern about health risks associated with NO2 and SO2 emissions in Bangladesh, China, India, Malaysia, and Iran, as they pay less attention to managing and controlling pollution. Even though the lack of quality datasets and adequate research in most Asian countries further complicates the management and control of NO2 and SO2 pollution. This study has NO2 and SO2 pollution scenarios, including hotspots, trends, sources, and their influences on Asian countries. This study highlights the existing research gaps and recommends new research on identifying integrated sources, their variations, spatiotemporal trends, emission characteristics, and pollution level. Finally, the present study suggests a framework for controlling and monitoring these two pollutants' emissions.
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Affiliation(s)
| | - Jannatun Nahar Jannat
- Department of Disaster Management, Begum Bekeya University, Rangpur 5400, Bangladesh
| | - Md Yousuf Mia
- Department of Disaster Management, Begum Bekeya University, Rangpur 5400, Bangladesh
| | - Md Arfan Ali
- College of Atmospheric Sciences, Lanzhou University, China; Center of Excellence for Climate Change Research, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Md Saiful Islam
- Department of Soil Science, Patuakhali Science and Technology University, Dumki, Patuakhali 8602, Bangladesh
| | - Sobhy M Ibrahim
- Department of Biochemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Subodh Chandra Pal
- Department of Geography, The University of Burdwan, Bardhaman 713104, West Bengal, India
| | - Aznarul Islam
- Department of Geography, Aliah University, 17 Gorachand Road, Kolkata 700 014, West Bengal, India.
| | - Aniruddha Sarker
- Department of Agro-food Safety and Crop Protection, National Institute of Agricultural Sciences, Rural Development Administration, Jeonju, Republic of Korea
| | - Guilherme Malafaia
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Ecology, Conservation, and Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil; Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, GO, Brazil
| | - Muhammad Bilal
- School of Surveying and Land Information Engineering, Henan Polytechnic University, Jiaozuo, China.
| | - Abu Reza Md Towfiqul Islam
- Department of Disaster Management, Begum Bekeya University, Rangpur 5400, Bangladesh; Department of Development Studies, Daffodil International University, Dhaka 1216, Bangladesh.
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Wan J, Yang H, Shi Y, Liu Y, Zhang J, Zhang J, Wu G, Zhou R. Effect of Cu loading content on the catalytic performance of Cu-USY catalysts for selective catalytic reduction of NO with NH 3. J Environ Sci (China) 2023; 126:445-458. [PMID: 36503771 DOI: 10.1016/j.jes.2022.03.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 03/14/2022] [Accepted: 03/16/2022] [Indexed: 06/17/2023]
Abstract
Series of Cu-USY zeolite catalyst with different Cu loading content were synthesized through simple impregnation method. The obtained catalysts were subjected to selective catalytic reduction of NOx with NH3 (NH3-SCR) performance evaluation, structural/chemical characterizations such as X-ray diffraction (XRD), N2 adsorption/desorption, H2 temperature-programmed reduction (H2-TPR), NH3 temperature-programmed desorption (NH3-TPD) as well as detailed in situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) experiments including CO adsorption, NH3 adsorption and NO+O2 in situ reactions. Results show that Cu-USY with proper Cu loading (in this work 5Cu-USY with 5 wt.% Cu) could be promising candidates with highly efficient NH3-SCR catalytic performance, relatively low byproduct formation and excellent hydrothermal stability, although its SO2 poisoning tolerability needs alleviation. Further characterizations reveal that such catalytic advantages can be attributed to both active cu species and surface acid centers evolution modulated by Cu loading. On one hand, Cu species in the super cages of zeolites increases with higher Cu content and being more conducive for NH3-SCR reactivity. On the other hand, higher Cu loading leads to depletion of Brønsted acid centers and simultaneous formation of abundant Lewis acid centers, which facilitates NH4NO3 reduction via NH3 adsorbed on Lewis acid centers, thus improving SCR reactivity. However, Cu over-introduction leads to formation of surface highly dispersed CuOx, causing unfavorable NH3 oxidation and inferior N2 selectivity.
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Affiliation(s)
- Jie Wan
- Energy Research Institute, Nanjing Institute of Technology, Nanjing 211167, China; Institute of Catalysis, Zhejiang University, Hangzhou 310028, China
| | - Haipeng Yang
- Institute of Catalysis, Zhejiang University, Hangzhou 310028, China
| | - Yijun Shi
- Institute of Catalysis, Zhejiang University, Hangzhou 310028, China
| | - Yanjun Liu
- Institute of Catalysis, Zhejiang University, Hangzhou 310028, China
| | - Jin Zhang
- Energy Research Institute, Nanjing Institute of Technology, Nanjing 211167, China
| | - Jun Zhang
- Energy Research Institute, Nanjing Institute of Technology, Nanjing 211167, China
| | - Gongde Wu
- Energy Research Institute, Nanjing Institute of Technology, Nanjing 211167, China
| | - Renxian Zhou
- Institute of Catalysis, Zhejiang University, Hangzhou 310028, China.
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In-situ One-Pot Synthesis of Ti/Cu-SSZ-13 Catalysts with Highly Efficient NH3-SCR Catalytic Performance as Well as Superior H2O/SO2 Tolerability. CATALYSIS SURVEYS FROM ASIA 2022. [DOI: 10.1007/s10563-022-09374-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Fan D, He W, Smith WN, Drury CF, Jiang R, Grant BB, Shi Y, Song D, Chen Y, Wang X, He P, Zou G. Global evaluation of inhibitor impacts on ammonia and nitrous oxide emissions from agricultural soils: A meta-analysis. GLOBAL CHANGE BIOLOGY 2022; 28:5121-5141. [PMID: 35678108 DOI: 10.1111/gcb.16294] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 03/28/2022] [Accepted: 05/16/2022] [Indexed: 06/15/2023]
Abstract
Inhibitors are widely considered an efficient tool for reducing nitrogen (N) loss and improving N use efficiency, but their effectiveness is highly variable across agroecosystems. In this study, we synthesized 182 studies (222 sites) worldwide to evaluate the impacts of inhibitors (urease inhibitors [UI], nitrification inhibitors [NI] and combined inhibitors) on crop yields and gaseous N loss (ammonia [NH3 ] and nitrous oxide [N2 O] emissions) and explored their responses to different management and environmental factors including inhibitor application timing, fertilization regime, cropping system, water management, soil properties and climatic conditions using subgroup meta-analysis, meta-regression and multivariate analyses. The UI were most effective in enhancing crop yields (by 5%) and reducing NH3 volatilization (by 51%), whereas NI were most effective at reducing N2 O emissions (by 49%). The application of UI mitigates NH3 loss and increases crop yields especially in high NH3 -N loss scenarios, whereas NI application would minimize the net N2 O emissions and the resultant environmental impacts especially in low NH3 -N loss scenarios. Alternatively, the combined application of UI and NI enables producers to balance crop production and environmental conservation goals without pollution tradeoffs. The inhibitor efficacy for decreasing gaseous N loss was dependent upon soil and climatic conditions and management practices. Notably, both meta-regression and multivariate analyses suggest that inhibitors provide a greater opportunity for reducing fertilizer N inputs in high-N-surplus systems and presumably favor crop yield enhancement under soil N deficiency situations. The pursuit of an improved understanding of the interactions between plant-soil-climate-management systems and different types of inhibitors should continue to optimize the effectiveness of inhibitors for reducing environmental losses while increasing productivity.
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Affiliation(s)
- Daijia Fan
- Institute of Plant Nutrition, Resources and Environment, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Wentian He
- Institute of Plant Nutrition, Resources and Environment, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Ward N Smith
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, Ontario, Canada
| | - Craig F Drury
- Harrow Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, Ontario, Canada
| | - Rong Jiang
- Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Brian B Grant
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, Ontario, Canada
| | - Yaoyao Shi
- Institute of Plant Nutrition, Resources and Environment, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Daping Song
- Institute of Plant Nutrition, Resources and Environment, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Yanhua Chen
- Institute of Plant Nutrition, Resources and Environment, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Xuexia Wang
- Institute of Plant Nutrition, Resources and Environment, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Ping He
- Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Guoyuan Zou
- Institute of Plant Nutrition, Resources and Environment, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
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Akimoto H, Sato K, Sase H, Dong Y, Hu M, Duan L, Sunwoo Y, Suzuki K, Tang X. Development of science and policy related to acid deposition in East Asia over 30 years. AMBIO 2022; 51:1800-1818. [PMID: 35119616 PMCID: PMC9200921 DOI: 10.1007/s13280-022-01702-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Revised: 11/07/2021] [Accepted: 01/03/2022] [Indexed: 05/28/2023]
Abstract
Scientific and public interest in acid deposition and its ecological impacts have increased throughout 1990s in East Asia (Northeast and Southeast Asia). After being established in 2001, the Acid Deposition Monitoring Network in East Asia (EANET) celebrates the 20th anniversary in 2021, and is now being expanded in scope reflecting the shifting social concern from acid deposition to broader air quality and climate change in recent years. This paper reviews the past 30 years of development of scientific research and policy related to acid deposition in East Asia. Since the onset of the twenty-first century, East Asia has had the highest SO2 and NOx emissions in the world by continents, with substantial economic developmental inequality among countries. An overview of studies on sulfur and nitrogen deposition, the acidification of inland water and forest soil, and forest decline reveal that although limited acidification of inland water and forest soils have been documented, no decline in the populations of fish and other aquatic biota has been reported in East Asia. After a review of policy-oriented modeling studies on source receptor relationships and the critical loads of sulfur and nitrogen in East Asia, the history of EANET and its success and challenges are discussed. Finally, the importance of epistemic communities as the interface between science and policy in the region is discussed. Regional governance and cooperation are essential for reducing the emission of greenhouse gases, especially short-lived climate pollutants and atmospheric pollutants to realize the co-benefits of global climate change mitigation and improved air quality.
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Affiliation(s)
- Hajime Akimoto
- National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506 Japan
| | - Keiichi Sato
- Asia Center for Air Pollution Research, 1182, Sowa Nishi-ku, Niigata-shi, 950-2144 Japan
| | - Hiroyuki Sase
- Asia Center for Air Pollution Research, 1182, Sowa Nishi-ku, Niigata-shi, 950-2144 Japan
| | - Yao Dong
- Asia Center for Air Pollution Research, 1182, Sowa Nishi-ku, Niigata-shi, 950-2144 Japan
| | - Min Hu
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, International Joint Research Center for Atmospheric Research (IJRC), College of Environmental Sciences and Engineering, Peking University, Beijing, 100871 China
| | - Lei Duan
- School of Environment, Tsinghua University, Beijing, 100084 China
| | - Young Sunwoo
- Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul, 05029 Korea
| | - Katsunori Suzuki
- Japan Council on Education for Sustainable Development, 5-38-5-201, Nishinippori, Arakawa-ku, Tokyo, 116-0013 Japan
| | - Xiaoyan Tang
- College of Environmental Sciences and Engineering, Peking University, Beijing, 100871 China
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Alex Kojo Acquah, Fang H, Wang S, Wu X. Comparison Study on Combustion Characteristics between Semicoke and Coke Breeze. COKE AND CHEMISTRY 2022. [DOI: 10.3103/s1068364x21090027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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8
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Associations between Long-Term Air Pollution Exposure and Risk of Osteoporosis-Related Fracture in a Nationwide Cohort Study in South Korea. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19042404. [PMID: 35206592 PMCID: PMC8872590 DOI: 10.3390/ijerph19042404] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 02/03/2022] [Accepted: 02/17/2022] [Indexed: 01/27/2023]
Abstract
Bone health is a major concern for aging populations globally. Osteoporosis and bone mineral density are associated with air pollution, but less is known about the impacts of air pollution on osteoporotic fracture. We aimed to assess the associations between long-term air pollution exposure and risk of osteoporotic fracture in seven large Korean cities. We used Cox proportional hazard models to estimate hazard rations (HRs) of time-varying moving window of past exposures of particulate matter (PM10), sulfur dioxide (SO2), carbon monoxide (CO), nitrogen dioxide (NO2), and ozone (O3) for osteoporotic fracture in Korean adults (age ≥ 50 years) in the National Health Insurance Service-National Sample Cohort data, followed 2002 to 2015. HRs were calculated for an interquartile range (IQR) increase. Comorbidity and prescription associated with osteoporosis, age, sex, body mass index, health behaviors, and income were adjusted in the models. Effect modification by age, sex, exercise, and income was examined. We assessed 56,467 participants over 535,481 person-years of follow up. Linear and positive exposure-response associations were found for SO2, while PM10 and NO2 showed nonlinear associations. SO2 was associated with osteoporosis-related fracture with marginal significance (HR for an IQR [2 ppb] increase = 1.04, 95% CI: 1.00, 1.09). The SO2 HR estimates were robust in analyses applying various moving windows of exposure (from one to three years of past exposure) and two-pollutant models. The central HR estimate of O3 implied positive associations but was not significant (HR for 0.007 ppm increase = 1.01, 95% CI: 0.97, 1.06). PM10, CO, and NO2 did not show associations. Vulnerable groups by sex, age, exercise, and income varied across air pollutants and there was no evidence of effect modifications. Long-term exposure to SO2, but not PM10, CO, NO2 and O3, was associated with increased osteoporotic fracture risks in Korean adults.
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Fu S, Guo M, Fan L, Deng Q, Han D, Wei Y, Luo J, Qin G, Cheng J. Ozone pollution mitigation in guangxi (south China) driven by meteorology and anthropogenic emissions during the COVID-19 lockdown. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 272:115927. [PMID: 33143981 PMCID: PMC7588315 DOI: 10.1016/j.envpol.2020.115927] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 10/23/2020] [Accepted: 10/23/2020] [Indexed: 05/20/2023]
Abstract
With the implementation of COVID-19 restrictions and consequent improvement in air quality due to the nationwide lockdown, ozone (O3) pollution was generally amplified in China. However, the O3 levels throughout the Guangxi region of South China showed a clear downward trend during the lockdown. To better understand this unusual phenomenon, we investigated the characteristics of conventional pollutants, the influence of meteorological and anthropogenic factors quantified by a multiple linear regression (MLR) model, and the impact of local sources and long-range transport based on a continuous emission monitoring system (CEMS) and the HYSPLIT model. Results show that in Guangxi, the conventional pollutants generally declined during the COVID-19 lockdown period (January 24 to February 9, 2020) compared with their concentrations during 2016-2019, while O3 gradually increased during the resumption (10 February to April 2020) and full operation periods (May and June 2020). Focusing on Beihai, a typical Guangxi region city, the correlations between the daily O3 concentrations and six meteorological parameters (wind speed, visibility, temperature, humidity, precipitation, and atmospheric pressure) and their corresponding regression coefficients indicate that meteorological conditions were generally conducive to O3 pollution mitigation during the lockdown. A 7.84 μg/m3 drop in O3 concentration was driven by meteorology, with other decreases (4.11 μg/m3) explained by reduced anthropogenic emissions of O3 precursors. Taken together, the lower NO2/SO2 ratios (1.25-2.33) and consistencies between real-time monitored primary emissions and ambient concentrations suggest that, with the closure of small-scale industries, residual industrial emissions have become dominant contributors to local primary pollutants. Backward trajectory cluster analyses show that the slump of O3 concentrations in Southern Guangxi could be partly attributed to clean air mass transfer (24-58%) from the South China Sea. Overall, the synergistic effects of the COVID-19 lockdown and meteorological factors intensified O3 reduction in the Guangxi region of South China.
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Affiliation(s)
- Shuang Fu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Meixiu Guo
- Beihai Ecology and Environment Agency, Beihai, Guangxi, 536000, China
| | - Linping Fan
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Qiyin Deng
- College of Environment, Hohai University, Nanjing, Jiangsu, 210098, China
| | - Deming Han
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Ye Wei
- Beihai Ecology and Environment Agency, Beihai, Guangxi, 536000, China
| | - Jinmin Luo
- Beihai Ecology and Environment Agency, Beihai, Guangxi, 536000, China
| | - Guimei Qin
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Jinping Cheng
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.
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Kim E, Kim BU, Kim HC, Kim S. Direct and cross impacts of upwind emission control on downwind PM 2.5 under various NH 3 conditions in Northeast Asia. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 268:115794. [PMID: 33120348 DOI: 10.1016/j.envpol.2020.115794] [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: 02/28/2020] [Revised: 09/10/2020] [Accepted: 10/06/2020] [Indexed: 06/11/2023]
Abstract
Emissions reductions in upwind areas can influence the PM2.5 concentrations in downwind areas via long-range transport. However, few studies have assessed the impact of upwind PM2.5 precursor controls on changes in downwind PM2.5 concentrations. In this study, we analyzed the overall impact of PM2.5 precursor emission controls in upwind areas on PM2.5 in downwind areas with two types of impacts: "direct impact" and "cross impact." The former refers to PM2.5 changes in downwind areas due to the transported PM2.5 itself, whereas the latter represents PM2.5 changes due to reactions between the transported gaseous precursors and intermediates (i.e., HNO3) originating from upwind areas and locally emitted precursors (i.e. NH3) in the downwind areas. As a case study, we performed air quality modeling for Northeast Asia for January 15-17, 2016 by setting China and South Korea as the upwind and downwind areas, respectively. To account for potential spatiotemporal variations in NH3 emissions in downwind areas, we considered two NH3 conditions. When NOx emissions in China were reduced by 35%, in downwind areas the PM2.5 concentrations decreased by 2.2 μg/m3 under NH3-rich conditions, while PM2.5 concentrations increased by 2.3 μg/m3 under NH3-poor conditions. The direct impact increased by 4.0 μg/m3 in both cases due to upwind NOx disbenefit effects. However, the cross impacts led to a PM2.5 decrease of 6.2 μg/m3 under NH3-rich conditions versus a PM2.5 increase of 1.7 μg/m3 under NH3-poor conditions. We noted that PM2.5 concentrations in the downwind areas may not improve unless a cross impact outweighs a direct impact. This may be one of the reasons why South Korea PM2.5 concentrations have not declined despite efforts by China to reduce their PM2.5 precursor emissions.
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Affiliation(s)
- Eunhye Kim
- Department of Environmental & Safety Engineering, Ajou University, Suwon, South Korea
| | - Byeong-Uk Kim
- Georgia Environmental Protection Division, Atlanta, GA, 30354, USA
| | - Hyun Cheol Kim
- Air Resources Laboratory, National Oceanic and Atmospheric Administration, College Park, MD, 20740, USA; Cooperative Institute for Satellite Earth System Studies, University of Maryland, College Park, MD, 20740, USA
| | - Soontae Kim
- Department of Environmental & Safety Engineering, Ajou University, Suwon, South Korea.
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Yuan P, Mei X, Shen B, Ji Z, Gao H, Yao Y, Liang C, Xu H. Effects of system parameters and residual ions on the oxidation removal of NO by Fenton method. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:2959-2971. [PMID: 32897474 DOI: 10.1007/s11356-020-10187-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 07/17/2020] [Indexed: 06/11/2023]
Abstract
In the present work, the effects of relevant system parameters on the oxidation removal of NO using the Fenton method were discussed in detail. Moreover, the impacts of ions remaining in the coal-fired process on the NO oxidation efficiency were investigated specifically. The experimental results showed that the oxidation efficiency of NO decreased with the increase of gas flow rate, reagent temperature, and CO2 volume fraction in the evaluated range, while it increased first and then decreased with the increase of gas temperature, NO initial concentration, O2 volume fraction, initial pH of reagent, and Fe2+/H2O2 molar ratio. In addition, the corresponding impact mechanism of the system parameters was discussed respectively. Although the SO2 showed a competitive effect on the utilization of oxidative radicals, the Fenton system also showed an ability for simultaneous removal of NO and SO2. Furthermore, the results indicated that the NO oxidation efficiency would be influenced by the residual ions, such as Ca2+, Mg2+, Na+, SO42-, and Cl-. The presence of the mentioned ions showed an inhibiting effect on the oxidation removal of NO in the first few minutes, while the NO oxidation efficiency would be enhanced in the bulk stage of the tests. The positive effect trended to be more obvious with the decline of the ion dosage. Subsequently, the influence mechanism of the aforesaid residual cations and anions was supposed and proposed preliminarily.
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Affiliation(s)
- Peng Yuan
- School of Energy & Environmental Engineering, Hebei University of Technology, Tianjin, 300401, People's Republic of China
- School of Chemical Engineering & Technology, Hebei University of Technology, Tianjin, 300130, People's Republic of China
- Tianjin Key Laboratory of Clean Energy Utilization and Pollutants Control, Hebei University of Technology, Tianjin, 300401, People's Republic of China
| | - Xue Mei
- School of Energy & Environmental Engineering, Hebei University of Technology, Tianjin, 300401, People's Republic of China
| | - Boxiong Shen
- School of Energy & Environmental Engineering, Hebei University of Technology, Tianjin, 300401, People's Republic of China.
- Tianjin Key Laboratory of Clean Energy Utilization and Pollutants Control, Hebei University of Technology, Tianjin, 300401, People's Republic of China.
| | - Zhiyong Ji
- School of Chemical Engineering & Technology, Hebei University of Technology, Tianjin, 300130, People's Republic of China.
| | - Hongpei Gao
- China Huaneng Group Clean Energy Technology Research Institute Co. Ltd., Beijing, 102209, People's Republic of China
| | - Yan Yao
- Suzhou TPRI Energy & Environment Technology Co. Ltd, Suzhou, 215010, People's Republic of China
| | - Cai Liang
- Chengdu Dongfang KWH Environmental Protection Catalysts Co. Ltd, Chengdu, 610042, People's Republic of China
| | - Hongjie Xu
- Xi'an Thermal Engineering Institute, Xi'an, 710032, People's Republic of China
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Kume A, Fujimoto M, Mizoue N, Honoki H, Nakajima H, Ishida M. Impact of reduced ozone concentration on the mountain forests of Mt. Tateyama, Japan. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 267:115407. [PMID: 32896765 DOI: 10.1016/j.envpol.2020.115407] [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: 06/18/2020] [Revised: 07/23/2020] [Accepted: 08/08/2020] [Indexed: 06/11/2023]
Abstract
The central mountainous area of Japan is affected by air pollutant emissions from nearby countries such as China and Korea. Sharp increases in the consumption of fossil fuels in the early 21st century, associated with rapid industrialization in China, resulted in long-range transport of pollutants from East Asia and increases in the harmful effects of pollution. However, the air pollutants emissions have decreased since 2006, when air pollution countermeasures were implemented in China. Furthermore, climatic patterns during 2008-2013 reduced tropospheric ozone concentrations around Japan. Such major changes in the social and climatic environment may have had a significant impact on forests. To investigate this, long-term forest monitoring data obtained at Buna-daira (1190 m a.s.l.), Buna-zaka (1090 m a.s.l.) and Arimine (1350 m a.s.l.) were analyzed. Buna-daira and Buna-zaka forests face the continental side of Mt. Tateyama in Toyama Prefecture. In both stands, the girth growth rate of Fagus crenata was found to have increased after 2008; however, such a tendency was not detected at Arimine, which is surrounded by mountains. The growth rates of Cryptomeria japonica, a conifer resistant to air pollution, were found to remain unchanged or decrease. Here, regional long-range transport of air pollution (including ozone and sulfur oxide) has been demonstrated to influence mountain forests in Japan. In particular, recent decreases in regional air pollution may be an important factor controlling increases in F. crenata, likely through changes in interspecific relationships between species sensitive to and tolerant of air pollution.
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Affiliation(s)
- Atsushi Kume
- Faculty of Agriculture, Kyushu University, Fukuoka, Japan.
| | - Mao Fujimoto
- Faculty of Agriculture, Kyushu University, Fukuoka, Japan
| | - Nobuya Mizoue
- Faculty of Agriculture, Kyushu University, Fukuoka, Japan
| | | | - Haruki Nakajima
- Forest Research Institute, Toyama Prefectural Agricultural, Forestry and Fisheries Research Center, Toyama, Japan
| | - Megumi Ishida
- Gifu Field Science Center, Faculty of Applied Biological Sciences, Gifu University, Gifu, Japan
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13
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Long-Range Transport Influence on Key Chemical Components of PM2.5 in the Seoul Metropolitan Area, South Korea, during the Years 2012–2016. ATMOSPHERE 2019. [DOI: 10.3390/atmos11010048] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This study identified the key chemical components based on an analysis of the seasonal variations of ground level PM2.5 concentrations and its major chemical constituents (sulfate, nitrate, ammonium, organic carbon, and elemental carbon) in the Seoul Metropolitan Area (SMA), over a period of five years, ranging from 2012 to 2016. It was found that the mean PM2.5 concentration in the SMA was 33.7 μg/m3, while inorganic ions accounted for 53% of the total mass concentration. The component ratio of inorganic ions increased by up to 61%–63% as the daily mean PM2.5 concentration increased. In spring, nitrate was the dominant component of PM2.5, accounting for 17%–32% of the monthly mean PM2.5 concentrations. In order to quantify the impact of long-range transport on the SMA PM2.5, a set of sensitivity simulations with the community multiscale air-quality model was performed. Results show that the annual averaged impact of Chinese emissions on SMA PM2.5 concentrations ranged from 41% to 44% during the five years. Chinese emissions’ impact on SMA nitrate ranged from 50% (winter) to 67% (spring). This result exhibits that reductions in SO2 and NOX emissions are crucial to alleviate the PM2.5 concentration. It is expected that NOX emission reduction efforts in China will help decrease PM2.5 concentrations in the SMA.
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14
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Producing Effective and Clean Coke for Household Combustion Activities to Reduce Gaseous Pollutant Emissions. J CHEM-NY 2019. [DOI: 10.1155/2019/7142804] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Nowadays, the gaseous pollutant emissions, including particulate matter (PM), sulfur dioxide (SO2), and nitrogen oxide (NOx) from household coal combustion, cause great threat to environment and public health by contributing to severe haze in China. Particularly, a clean coke free of the major pollutants precursors (sulfur and nitrogen compounds) by sulfur fixation and denitrification has been deemed as an effective strategy to reducing pollutants. In this paper, a preprocessed coke was prepared by co-pyrolysis of high-sulfur coal with the assistance of calcium-based and iron-based complexes at high temperature. The results show that high-temperature co-pyrolysis could remove the volatile compounds that are major precursors for the formation of gaseous pollutants from the raw coal. During the coking process, the sulfur can be removed by being fixed in the form of CaS in presence of a Ca-based complex, which could be beneficial for the CaSO4 during the coke combustion. The volatile nitrogen is transferred to the gas phase with the addition of Fe-based complexes, which effectively reduce the residual nitrogen in coke. As a result, Ca-based additives captured the released SO2 and formed CaSO4 during the combustion process. In addition, in the presence of Fe-based complexes, both char and CO react with NOx to form N2, which leads to a reduction in NOx emissions during combustion. Additionally, the replacement of current residential coal with a new type of clean coke is a facile method for reducing gaseous pollutant emissions from household activities to protect the atmospheric environment. The average emission factors (EFs) of PM, SO2, and NOx for the prepared clean coke were small during combustion and were much lower than the EFs of the tested raw coal, semicoke, and briquettes.
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15
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Kou K, Zhou W, Wang Y, Zhao H, Gao J. Investigation of advanced NO oxidation process with the delivery of ·OH from thermal decomposition of H
2
O
2. CAN J CHEM ENG 2019. [DOI: 10.1002/cjce.23482] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Kaikai Kou
- School of Energy Science and EngineeringHarbin Institute of Technology Harbin 150001 P. R. China
| | - Wei Zhou
- School of Energy Science and EngineeringHarbin Institute of Technology Harbin 150001 P. R. China
| | - Yan Wang
- School of Energy Science and EngineeringHarbin Institute of Technology Harbin 150001 P. R. China
| | - Haiqian Zhao
- School of Civil Engineering & ArchitectureNortheast Petroleum University Daqing 163318 P. R. China
| | - Jihui Gao
- School of Energy Science and EngineeringHarbin Institute of Technology Harbin 150001 P. R. China
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16
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Taraškevičius R, Zinkutė R, Gedminienė L, Stankevičius Ž. Hair geochemical composition of children from Vilnius kindergartens as an indicator of environmental conditions. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2018; 40:1817-1840. [PMID: 28536963 DOI: 10.1007/s10653-017-9977-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Accepted: 05/10/2017] [Indexed: 06/07/2023]
Abstract
The research is based on analysis data of Cr, Cu, Mn, Ni, V, Zn (metals) and S in the hair of 47 girls and 63 boys from eight Vilnius kindergartens and the distribution pattern of high metal concentrations and bioavailability in snow-cover dust, also dust samples from vents of characteristic pollution sources. The kindergartens were selected according to topsoil total contamination index and dust-related indices. Significantly higher Cu, Mn, Ni and Zn concentrations in the hair of girls (means are 1.1, 1.9, 1.3, 1.2 times higher) and the differences between hair of genders according to inter-element correlation and clustering were found. Analysis of Spearman correlation coefficients between metal concentrations in hair of each gender and dust metal concentrations or metal loading rates at their residence sites revealed that for Mn, Cu and Zn, they are insignificant, while for Cr, Ni, Pb and V, they are mainly significant positive (except V in female hair). The correlation of the contents of Cr, Ni and V in dust with respective concentrations in hair was more significant for boys (p < 0.001) than for girls. Only a few cases with a significant Cr, Ni, Cu, Pb and Zn increase were revealed in hair of children attending polluted kindergartens in comparison with control. It was concluded that relationship between metal concentrations in hair and dust-related indices is more expressed for children's residence sites than for their kindergarten sites. The gender-based grouping and site-by-site study design are recommended in the studies of reflection of environmental exposure in hair.
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Affiliation(s)
- Ričardas Taraškevičius
- Nature Research Centre, Akademijos 2, LT-08412, Vilnius, Lithuania.
- Klaipėda University, Herkaus Manto 84, LT-92294, Klaipėda, Lithuania.
| | - Rimantė Zinkutė
- Nature Research Centre, Akademijos 2, LT-08412, Vilnius, Lithuania
| | - Laura Gedminienė
- Nature Research Centre, Akademijos 2, LT-08412, Vilnius, Lithuania
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Lee CS, Chang KH, Kim H. Long-term (2005-2015) trend analysis of PM 2.5 precursor gas NO 2 and SO 2 concentrations in Taiwan. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:22136-22152. [PMID: 29802618 DOI: 10.1007/s11356-018-2273-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 05/08/2018] [Indexed: 06/08/2023]
Abstract
Ground air monitoring stations have been installed in Taiwan since 1993 to ensure whether the criteria air pollutants meet the ambient air quality standards. In the present study, the data from the monitoring stations were used to evaluate long-term (2005-2015) trend of NO2 and SO2 in three metropolitan cities (northern Taipei, central Taichung, and southern Kaohsiung), two eastern coastal cities (Hualien and Taitung), and one agricultural city in west-central plain (Douliu); those cities essentially covered the entire region of Taiwan. The results indicate that SO2 and NO2 concentrations of all studied six cities meet the annual average standards of 30 and 50 ppb, respectively. After deseasonalizing the original data and using 7-month moving average, the trend analysis reveals a decreasing trend ranging from 0.15 to 0.57 ppb/year (R2 from 0.33 to 0.85) for NO2 and 0.06 to 0.45 ppb/year (R2 from 0.32 to 0.92) for SO2; the corresponding reductions over the 10-year span are 4 to 42% for NO2 and 22 to 52% for SO2. The reduction trend, despite the growth in GDP, vehicle numbers and energy consumption, industrial output, etc., is similar to those of developed countries. Clearly, there are seasonal/monthly variation patterns for these two precursor gases with minimum levels in summer (July) and maximum in winter (December). The concentration reductions, however, were lagging behind the respective emission reductions. There are significant correlations among six cites for NO2 (r = 0.58-0.93) and, to some extent, SO2 (0.32-0.66). The correlation between SO2 and NO2 (r = 0.46-0.74) indicates same or similar emission sources. Furthermore, the correlation between observed pollutant concentrations and their emission is excellent for SO2 in two cities (0.79-0.96). The SO2/NO2 ratios vary with city and time and the value is site specific. For example, in 2005, the SO2/NO2 ratio was 0.38 in Kaohsiung and 0.18 in both Taipei and Taichung, the latter reflecting significant contribution from mobile sources. However, they all converged to 0.18-0.28 in 2015 in the six cities evaluated. All in all, the policies/measures made by the central and local government are effective in reducing ambient SO2 and NO2 levels.
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Affiliation(s)
- Chih-Sheng Lee
- Department of Environmental Engineering, Kun Shan University, Tainan, 71070, Taiwan
| | - Ken-Hui Chang
- Department of Safety, Health, and Environmental Engineering, National Yunlin University of Science and Technology, Yunlin, 64002, Taiwan.
| | - Hyunook Kim
- Department of Energy & Environmental System Engineering, The University of Seoul, Seoul, 02504, South Korea
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18
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Jia J, Gong Z, Gu Z, Chen C, Xie D. Multi-perspective comparisons and mitigation implications of SO 2 and NO x discharges from the industrial sector of China: a decomposition analysis. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:9600-9614. [PMID: 29359250 PMCID: PMC7088665 DOI: 10.1007/s11356-018-1306-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Accepted: 01/15/2018] [Indexed: 05/06/2023]
Abstract
This study is the first attempt to investigate the drivers of Chinese industrial SO2 and NO x emissions from both periodic and structural perspectives through a decomposition analysis using the logarithmic mean Divisia index (LMDI). The two pollutants' emissions were decomposed into output effects, structural effects, clean production effects, and pollution abatement effects. The results showed that China's industrial SO2 discharge increased by 1.14 Mt during 2003-2014, and the contributions from the four effects were 23.17, - 1.88, - 3.80, and - 16.36 Mt, respectively. Likewise, NO x discharge changed by - 3.44 Mt over 2011-2014, and the corresponding contributions from the four effects were 2.97, - 0.62, - 1.84, and - 3.95 Mt. Thus, the output effect was mainly responsible for the growth of the two discharges. The average annual contribution rates of SO2 and NO x from output were 14.33 and 5.97%, respectively, but pollution abatement technology presented the most obvious mitigating effects (- 10.11 and - 7.92%), followed by the mitigating effects of clean production technology (- 2.35 and - 3.7%), and the mitigation from the structural effect was the weakest (- 1.16 and - 1.25%, respectively), which meant pollutant reduction policies related to industrial structure adjustment should be a long-term measure for the two discharges. In addition, the sub-sectors of I20 (manufacture of raw chemical materials and chemical products), I24 (manufacture of non-metallic mineral products), and I26 (smelting and pressing of non-ferrous metals) were the major contributors to both discharges. Thus, these sub-sectors should be given priority consideration when designing mitigation-related measures. Last, some particular policy implications were recommended for reducing the two discharges, including that the government should seek a technological discharge reduction route.
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Affiliation(s)
- Junsong Jia
- Key Laboratory of Poyang Lake Wetland and Watershed Research, Ministry of Education, Jiangxi Normal University, Nanchang, Jiangxi 330022 China
- School of Geography and Environment, Jiangxi Normal University, Nanchang, Jiangxi 330022 China
| | - Zhihai Gong
- School of Geography and Environment, Jiangxi Normal University, Nanchang, Jiangxi 330022 China
- Graduate School, Jiangxi Normal University, Nanchang, Jiangxi 330022 China
| | - Zhongyu Gu
- Key Laboratory of Poyang Lake Wetland and Watershed Research, Ministry of Education, Jiangxi Normal University, Nanchang, Jiangxi 330022 China
- School of Geography and Environment, Jiangxi Normal University, Nanchang, Jiangxi 330022 China
| | - Chundi Chen
- Key Laboratory of Reservoir Aquatic Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714 China
| | - Dongming Xie
- Jiangxi Science and Technology Normal University, Nanchang, Jiangxi 330013 China
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Impacts of GDP, Fossil Fuel Energy Consumption, Energy Consumption Intensity, and Economic Structure on SO2 Emissions: A Multi-Variate Panel Data Model Analysis on Selected Chinese Provinces. SUSTAINABILITY 2018. [DOI: 10.3390/su10030657] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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20
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Air Pollution Inequality and Its Sources in SO2 and NOX Emissions among Chinese Provinces from 2006 to 2015. SUSTAINABILITY 2018. [DOI: 10.3390/su10020367] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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21
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Duo B, Cui L, Wang Z, Li R, Zhang L, Fu H, Chen J, Zhang H, Qiong A. Observations of atmospheric pollutants at Lhasa during 2014-2015: Pollution status and the influence of meteorological factors. J Environ Sci (China) 2018; 63:28-42. [PMID: 29406111 DOI: 10.1016/j.jes.2017.03.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2016] [Accepted: 03/08/2017] [Indexed: 05/24/2023]
Abstract
Atmospheric pollutants including SO2, NO2, CO, O3 and inhalable particulate matter (PM2.5 and PM10) were monitored continuously from March 2014 to February 2015 to investigate characteristics of air pollution at Lhasa, Tibetan Plateau. Species exhibited similar seasonal variations except O3, with the peaks in winter but low valleys in summer. The maximum O3 concentration was observed in spring, followed by summer, autumn, and winter. The positive correlation between O3 and PM10 in spring indicated similar sources of them, and was assumed to be turbulent transport. Temperature was the dominant meteorological factor for most species in spring. High temperature accelerates O3 photochemistry, and favors air disturbance which is conductive to dust resuspension in spring. Relative humidity (RH) and atmospheric pressure were the main meteorological factors in summer. RH showed negative correlations with species, while atmospheric pressure posed opposite situation. Wind speed (WS) was the dominant meteorological factor in autumn, the negative correlations between WS and species indicated diffusion by wind. Most species showed non-significant correlations with meteorological factors in winter, indicating the dependence of pollution on source emission rather than restriction by meteorology. Pollution weather character indicated that emissions were from biomass burning and dust suspension, and meteorological factors also played an important role. Air stream injection from the stratosphere was observed during O3 pollution period. Air parcels from Southwest Asia were observed during air pollution period in winter. An enhancement in air pollutants such as O3 would be expected in the future, more attention should be given to countermeasures for prevention of air pollution in the future.
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Affiliation(s)
- Bu Duo
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, China; Department of Chemistry & Environmental Science, Tibet University, Lhasa 850000, China
| | - Lulu Cui
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, China
| | - Zhenzhen Wang
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, China
| | - Rui Li
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, China
| | - Liwu Zhang
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, China
| | - Hongbo Fu
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, China; Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (CICAEET), Nanjing University of Information Science and Technology, Nanjing 210044, China.
| | - Jianmin Chen
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, China.
| | - Huifang Zhang
- Environmental Monitoring Center Station of Tibet Autonomous Region, Lhasa 850000, China
| | - A Qiong
- Environmental Monitoring Center Station of Tibet Autonomous Region, Lhasa 850000, China
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Analysis of the Relative Price in China’s Energy Market for Reducing the Emissions from Consumption. ENERGIES 2017. [DOI: 10.3390/en10050656] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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