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Carlson EA, Melathopoulos A, Sagili R. The power to (detect) change: Can honey bee collected pollen be used to monitor pesticide residues in the landscape? PLoS One 2024; 19:e0309236. [PMID: 39325774 PMCID: PMC11426543 DOI: 10.1371/journal.pone.0309236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 08/05/2024] [Indexed: 09/28/2024] Open
Abstract
Analysis of trapped honey bee pollen for pesticide residues is the most widely used method of monitoring the amount of pesticide entering colonies and its change over time. In this study, we collected and analyzed pollen from 70 sites across four bee-pollinated crops over two years to characterize the variation in pesticide detection across sites, crops and at different periods during bloom. Hazard Quotient, HQ, is the most common way that pesticide residues are aggregated into a single pesticide hazard value in the current literature. Therefore, change in pesticide hazard (HQ) was quantified in composite pollen samples collected from pollen traps and in pollen color subsamples separated into pollen from the target crop being pollinated and pollen from other plant species. We used our estimates of the variation in HQ to calculate the number of sample location sites needed to detect a 5% annual change in HQ across all crops or within specific crops over a 5-year period. The number of sites required to be sampled varied by crop and year and ranged between 139 and 7194 sites, costing an estimated $129,548 and $3.35 million, respectively. The HQ values detectable for this cost would be 575 and 154. We identified additional factors that complicate the interpretation of the results as a way to evaluate changes in pest management practices at a state level. First, in all but one crop (meadowfoam), the pollen collected from outside the crop honey bee colonies were pollinating comprised a major percentage of the total pollen catch. Moreover, we found that when the overall quantity of pollen from different pollen sources was taken into account, differences in HQ among crops widened. We also found that while HQ estimates remain consistent across the bloom period for some crops, such as cherry, we observed large differences in other crops, notably meadowfoam. Overall, our results suggest the current practice of interpreting pesticides levels in pollen may come with limitations for agencies charged with improving pesticide stewardship due to the high variation associated with HQ values over time and across crops. Despite the limitations of HQ for detecting change in pesticide hazard, there remains a potential for HQ to provide feedback to regulators and scientists on field-realistic pesticide hazard within a landscape.
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Affiliation(s)
- Emily A Carlson
- Department of Horticulture, Oregon State University, Corvallis, Oregon, United States of America
| | - Andony Melathopoulos
- Department of Horticulture, Oregon State University, Corvallis, Oregon, United States of America
| | - Ramesh Sagili
- Department of Horticulture, Oregon State University, Corvallis, Oregon, United States of America
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2
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Vickneswaran M, Carolan JC, Saunders M, White B. Establishing the extent of pesticide contamination in Irish agricultural soils. Heliyon 2023; 9:e19416. [PMID: 37674820 PMCID: PMC10478240 DOI: 10.1016/j.heliyon.2023.e19416] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 07/15/2023] [Accepted: 08/22/2023] [Indexed: 09/08/2023] Open
Abstract
To establish meaningful and sustainable policy directives for sustainable pesticide use in agriculture, baseline knowledge of pesticide levels in soils is required. To address this, five pesticides and one metabolite widely used in Irish agriculture and five neonicotinoid compounds pesticides were screened from soils from 25 fields. These sites represented a diversity of soil and land use types. Prothioconazole was detected in 16 of the 18 sites where it had been recently applied, with the highest maximum concentration quantified of 46 μg/kg. However, a week after application only four fields had prothioconazole concentrations above the limit of quantification (LOQ). Fluroxypyr was applied in 11 sites but was not detected above LOQ. Glyphosate and AMPA were not detected. Interestingly, neonicotinoids were detected in 96% of all sampling sites, even though they were not reported as recently applied. Excluding neonicotinoids, 60% of sites were found to contain pesticide residues of compounds that were not previously applied, with boscalid and azoxystrobin detected in 15 of the 25 sites sampled. The total number of pesticides detected in Irish soils were significantly negatively correlated with clay fraction, while average pesticide concentrations were significantly positively correlated with log Kow values. 17 fields were found to have total pesticide concentrations in excess of 0.5 μg/kg, even when recently applied pesticides were removed from calculations. Theoretical consideration of quantified pesticides determined that azoxystrobin has high leaching risk, while boscalid, which was detected but not applied, has an accumulation risk. This information provides insight into the current level of pesticide contamination in Irish agricultural soil and contributes to the European-level effort to understand potential impacts of pesticide contamination in soil.
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Affiliation(s)
| | - James C. Carolan
- Department of Biology, Maynooth University, Maynooth, Co. Kildare, Ireland
| | - Matthew Saunders
- Department of Botany, Trinity College Dublin, College Green, Dublin 2, Ireland
| | - Blánaid White
- School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland
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3
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Medkova D, Hollerova A, Riesova B, Blahova J, Hodkovicova N, Marsalek P, Doubkova V, Weiserova Z, Mares J, Faldyna M, Tichy F, Svobodova Z, Lakdawala P. Pesticides and Parabens Contaminating Aquatic Environment: Acute and Sub-Chronic Toxicity towards Early-Life Stages of Freshwater Fish and Amphibians. TOXICS 2023; 11:333. [PMID: 37112561 PMCID: PMC10141211 DOI: 10.3390/toxics11040333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 03/27/2023] [Accepted: 03/28/2023] [Indexed: 06/19/2023]
Abstract
Pesticides and personal care products are two very important groups of contaminants posing a threat to the aquatic environment and the organisms living in it.. Therefore, this study aimed to describe the effects of widely used pesticides and parabens on aquatic non-target biota such as fish (using model organisms Danio rerio and Cyprinus carpio) and amphibians (using model organism Xenopus laevis) using a wide range of endpoints. The first part of the experiment was focused on the embryonal toxicity of three widely used pesticides (metazachlor, prochloraz, and 4-chloro-2-methyl phenoxy acetic acid) and three parabens (methylparaben, propylparaben, and butylparaben) with D. rerio, C. carpio, and X. laevis embryos. An emphasis was placed on using mostly sub-lethal concentrations that are partially relevant to the environmental concentrations of the substances studied. In the second part of the study, an embryo-larval toxicity test with C. carpio was carried out with prochloraz using concentrations 0.1, 1, 10, 100, and 1000 µg/L. The results of both parts of the study show that even the low, environmentally relevant concentrations of the chemicals tested are often able to affect the expression of genes that play either a prominent role in detoxification and sex hormone production or indicate cell stress or, in case of prochloraz, to induce genotoxicity.
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Affiliation(s)
- Denisa Medkova
- Department of Animal Protection and Welfare & Veterinary Public Health, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, 612 42 Brno, Czech Republic
- Department of Zoology, Fisheries, Hydrobiology and Apiculture, Faculty of Agrisciences, Mendel University in Brno, 613 00 Brno, Czech Republic
- Department of Animal Breeding, Animal Nutrition and Biochemistry, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, 612 42 Brno, Czech Republic
| | - Aneta Hollerova
- Department of Animal Protection and Welfare & Veterinary Public Health, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, 612 42 Brno, Czech Republic
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, 621 00 Brno, Czech Republic
| | - Barbora Riesova
- Department of Animal Protection and Welfare & Veterinary Public Health, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, 612 42 Brno, Czech Republic
| | - Jana Blahova
- Department of Animal Protection and Welfare & Veterinary Public Health, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, 612 42 Brno, Czech Republic
| | - Nikola Hodkovicova
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, 621 00 Brno, Czech Republic
| | - Petr Marsalek
- Department of Animal Protection and Welfare & Veterinary Public Health, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, 612 42 Brno, Czech Republic
| | - Veronika Doubkova
- Department of Animal Protection and Welfare & Veterinary Public Health, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, 612 42 Brno, Czech Republic
| | - Zuzana Weiserova
- Department of Animal Protection and Welfare & Veterinary Public Health, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, 612 42 Brno, Czech Republic
| | - Jan Mares
- Department of Zoology, Fisheries, Hydrobiology and Apiculture, Faculty of Agrisciences, Mendel University in Brno, 613 00 Brno, Czech Republic
| | - Martin Faldyna
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, 621 00 Brno, Czech Republic
| | - Frantisek Tichy
- Department of Anatomy, Histology and Embryology, Faculty of Veterinary medicine, University of Veterinary Sciences Brno, 612 42 Brno, Czech Republic
| | - Zdenka Svobodova
- Department of Animal Protection and Welfare & Veterinary Public Health, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, 612 42 Brno, Czech Republic
| | - Pavla Lakdawala
- Department of Animal Protection and Welfare & Veterinary Public Health, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, 612 42 Brno, Czech Republic
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Farrow LG, Morton PA, Cassidy R, Floyd S, McRoberts WC, Doody DG, Jordan P. Evaluation of Chemcatcher® passive samplers for pesticide monitoring using high-frequency catchment scale data. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 324:116292. [PMID: 36183532 PMCID: PMC9666346 DOI: 10.1016/j.jenvman.2022.116292] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 08/24/2022] [Accepted: 09/13/2022] [Indexed: 06/16/2023]
Abstract
Passive samplers (PS) have been proposed as an enhanced water quality monitoring solution in rivers, but their performance against high-frequency data over the longer term has not been widely explored. This study compared the performance of Chemcatcher® passive sampling (PS) devices with high-frequency sampling (HFS: 7-hourly to daily) in two dynamic rivers over 16 months. The evaluation was based on the acid herbicides MCPA (2-methyl-4-chlorophenoxyacetic acid), mecoprop-P, fluroxypyr and triclopyr. The impact of river discharge parameters on Chemcatcher® device performance was also explored. Mixed effects modelling showed that time-weighted mean concentration (TWMC) and flow-weighted mean concentration (FWMC) values obtained by the HFS approach were both significantly higher (p < 0.001) than TWMC values determined from PS regardless of river or pesticide. Modelling also showed that TWMCPS values were more similar to TWMCHFS than FWMCHFS values. However, further testing revealed that MCPA TWMC values from HFS and PS were not significantly different (p > 0.05). There was little indication that river flow parameters altered PS performance-some minor effects were not significant or consistent. Despite this, the PS recovery of very low concentrations indicated that Chemcatcher® devices may be used to evaluate the presence/absence and magnitude of acid herbicides in hydrologically dynamic rivers in synoptic type surveys where space and time coverage is required. However, a period of calibration of the devices in each river would be necessary if they were intended to provide a quantitative review of pesticide concentration as compared with HFS approaches.
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Affiliation(s)
- Luke G Farrow
- Agri-Environment Branch, Agri-Food and Bioscience Institute, Belfast, UK.
| | - Phoebe A Morton
- Agri-Environment Branch, Agri-Food and Bioscience Institute, Belfast, UK.
| | - Rachel Cassidy
- Agri-Environment Branch, Agri-Food and Bioscience Institute, Belfast, UK.
| | - Stewart Floyd
- Food Research Branch, Agri-Food and Bioscience Institute, Belfast, UK.
| | - W Colin McRoberts
- Food Research Branch, Agri-Food and Bioscience Institute, Belfast, UK.
| | - Donnacha G Doody
- Agri-Environment Branch, Agri-Food and Bioscience Institute, Belfast, UK.
| | - Philip Jordan
- School of Geography and Environmental Sciences, Ulster University, Coleraine, UK.
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5
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Development of a green deep eutectic solvent-based thin film solid phase microextraction technique for the preconcentration of chlorophenoxy acid herbicides in drainage ditches and river waters using a central composite design. Microchem J 2022. [DOI: 10.1016/j.microc.2022.108101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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6
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Wu D, Ren D, Li Q, Zhu A, Song Y, Yin W, Wu C. Molecular linkages between chemodiversity and MCPA complexation behavior of dissolved organic matter in paddy soil: Effects of land conversion. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 311:119949. [PMID: 35970345 DOI: 10.1016/j.envpol.2022.119949] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 07/27/2022] [Accepted: 08/05/2022] [Indexed: 06/15/2023]
Abstract
Complexation of dissolved organic matter (DOM) plays a crucial role in regulating the fate and risk of agrochemicals. Here, taking a toxic herbicide MCPA (4-chloro-2- methylphenoxyacetic acid) as the target, the effect of land conversion on complexation behavior of DOM to agrochemicals was investigated in paddy soil. Furthermore, the mechanisms were explored in a new perspective of DOM chemodiversity. Soil DOMs were selected from four long-term cropping systems, including paddy field (PF), vegetable field (VF), rice-vegetable rotation (RV) and abandoned land (AL). The results showed that the DOMs in PF and AL were rich in hydrophilic substances (e.g., carbohydrates or protein-like molecules) with low aromaticity. However, after converting PF to VF and RV, abundant aromatic macromolecules and aliphatic alkanes were observed in DOM. Due to those changes in DOM chemodiversity, the binding site and capability of DOM were highest in VF and RV, and were positively correlated with DOM aromaticity, MW, humus and polar groups (e.g., amino). This was because the complexation of "DOM-MCPA" was static binding via ligand exchange and H-bonding among polar groups and hydrophobic interaction among aromatic skeletons. The EEM-PARAFAC confirmed that microbial humic-like substances dominated the complexation of DOM rather than terrestrial humic-like and tryptophan-like matters. The 2D-COS analysis further revealed that the complexation of DOM preferentially occurred in amino, polysaccharide C-O and aliphatic C-H for PF and AL, but in aromatic C=C, amide C=N for RV and VF. In summary, these findings provide molecular insight into the effect of land conversion on DOM complexation activity, which highlight the importance of DOM chemodiversity. These results will contribute to the risk assessments of agrochemicals in paddy soil.
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Affiliation(s)
- Dongming Wu
- Institute of Environment and Plant Protection, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, PR China; National Agricultural Experimental Station for Agricultural Environment, Tropical Agro-ecosystem, National Observation and Research Station, Danzhou, 571737, PR China
| | - Dong Ren
- College of Environmental Science and Engineering, China West Normal University, Nanchong, 637009, PR China
| | - Qinfen Li
- Institute of Environment and Plant Protection, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, PR China; National Agricultural Experimental Station for Agricultural Environment, Tropical Agro-ecosystem, National Observation and Research Station, Danzhou, 571737, PR China; Hainan Key Laboratory of Tropical Eco-circuling Agriculture, Haikou, 571101, PR China
| | - Anhong Zhu
- Institute of Environment and Plant Protection, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, PR China
| | - Yike Song
- Institute of Environment and Plant Protection, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, PR China
| | - Wenfang Yin
- Institute of Environment and Plant Protection, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, PR China
| | - Chunyuan Wu
- Institute of Environment and Plant Protection, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, PR China; National Agricultural Experimental Station for Agricultural Environment, Tropical Agro-ecosystem, National Observation and Research Station, Danzhou, 571737, PR China; Hainan Engineering Research Center for Non-point Source and Heavy Metal Pollution Control, Haikou, 571101, PR China.
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7
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Metal–organic frameworks (MOFs) for the efficient removal of contaminants from water: Underlying mechanisms, recent advances, challenges, and future prospects. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214595] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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8
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Cassidy R, Jordan P, Farrow L, Floyd S, McRoberts C, Morton P, Doody D. Reducing MCPA herbicide pollution at catchment scale using an agri-environmental scheme. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 838:156080. [PMID: 35605857 DOI: 10.1016/j.scitotenv.2022.156080] [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: 03/28/2022] [Revised: 05/16/2022] [Accepted: 05/16/2022] [Indexed: 06/15/2023]
Abstract
In river catchments used as drinking water sources, high pesticide concentrations in abstracted waters require an expensive treatment step prior to supply. The acid herbicide 2-methyl-4-chlorophenoxyacetic acid (MCPA) is particularly problematic as it is highly mobile in the soil-water environment following application. Here, an agri-environmental scheme (AES) was introduced to a large-scale catchment (384 km2) to potentially reduce the burden of pesticides in the water treatment process. The main measure offered was contractor application of glyphosate by weed wiping as a substitute for boom spraying of MCPA, supported by educational and advisory activities. A combined innovation applied in the assessment was, i) a full before-after-control-impact (BACI) framework over four peak application seasons (April to October 2018 to 2021) where a neighbouring catchment (386 km2) did not have an AES and, ii) an enhanced monitoring approach where river discharge and MCPA concentrations were measured synchronously in each catchment. During peak application periods the sample resolution was every 7 h, and daily during quiescent winter periods. This sampling approach enabled flow- and time-weighted concentrations to be established, and a detailed record of export loads. These loads were up to 0.242 kg km-2 yr-1, and over an order of magnitude higher than previously reported in the literature. Despite this, and accounting for inter-annual and seasonal variations in river discharges, the AES catchment indicated a reduction in both flow- and time-weighted MCPA concentration of up to 21% and 24%, respectively, compared to the control catchment. No pollution swapping was detected. Nevertheless, the percentage of MCPA occurrences above a 0.1 μg L-1 threshold did not reduce and so the need for treatment was not fully resolved. Although the work highlights the advantages of catchment management approaches for pollution reduction in source water catchments, it also indicates that maximising participation will be essential for future AES.
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Affiliation(s)
- Rachel Cassidy
- Agri-Environment Branch, Agri-Food and Biosciences Institute, Belfast, UK.
| | - Phil Jordan
- School of Geography and Environmental Sciences, Ulster University, Coleraine, UK
| | - Luke Farrow
- Agri-Environment Branch, Agri-Food and Biosciences Institute, Belfast, UK
| | - Stewart Floyd
- Food Research Branch, Agri-Food and Biosciences Institute, Belfast, UK
| | - Colin McRoberts
- Food Research Branch, Agri-Food and Biosciences Institute, Belfast, UK
| | - Phoebe Morton
- Agri-Environment Branch, Agri-Food and Biosciences Institute, Belfast, UK
| | - Donnacha Doody
- Agri-Environment Branch, Agri-Food and Biosciences Institute, Belfast, UK
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9
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Atcheson K, Mellander PE, Cassidy R, Cook S, Floyd S, McRoberts C, Morton PA, Jordan P. Quantifying MCPA load pathways at catchment scale using high temporal resolution data. WATER RESEARCH 2022; 220:118654. [PMID: 35635916 DOI: 10.1016/j.watres.2022.118654] [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: 02/15/2022] [Revised: 05/18/2022] [Accepted: 05/21/2022] [Indexed: 06/15/2023]
Abstract
Detection of the agricultural acid herbicide MCPA (2-methyl-4-chlorophenoxyacetic acid) in drinking water source catchments is of growing concern, with economic and environmental implications for water utilities and wider ecosystem services. MCPA is poorly adsorbed to soil and highly mobile in water, but hydrological pathway processes are relatively unknown at the catchment scale and limited by coarse resolution data. This understanding is required to target mitigation measures and to provide a framework to monitor their effectiveness. To address this knowledge gap, this study reports findings from river discharge and synchronous MCPA concentration datasets (continuous 7 hour and with additional hourly sampling during storm events) collected over a 7 month herbicide spraying season. The study was undertaken in a surface (source) water catchment (384 km2-of which 154 km2 is agricultural land use) in the cross-border area of Ireland. Combined into loads, and using two pathway separation techniques, the MCPA data were apportioned into event and baseload components and the former was further separated to quantify a quickflow (QF) and other event pathways. Based on the 7 hourly dataset, 85.2 kg (0.22 kg km-2 by catchment area, or 0.55 kg km-2 by agricultural area) of MCPA was exported from the catchment in 7 months. Of this load, 87.7 % was transported via event flow pathways with 72.0 % transported via surface dominated (QF) pathways. Approximately 12 % of the MCPA load was transported via deep baseflows, indicating a persistence in this delayed pathway, and this was the primary pathway condition monitored in a weekly regulatory sampling programme. However, overall, the data indicated a dominant acute, storm dependent process of incidental MCPA loss during the spraying season. Reducing use and/or implementing extensive surface pathway disconnection measures are the mitigation options with greatest potential, the success of which can only be assessed using high temporal resolution monitoring techniques.
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Affiliation(s)
- Kevin Atcheson
- School of Geography and Environmental Sciences, Ulster University, Coleraine, UK.
| | - Per-Erik Mellander
- Agricultural Catchments Programme, Teagasc, Johnstown Castle, Wexford, Ireland
| | - Rachel Cassidy
- Agri-Environment Branch, Agri-Food and Biosciences Institute, Belfast, UK
| | - Sally Cook
- School of Geography and Environmental Sciences, Ulster University, Coleraine, UK
| | - Stewart Floyd
- Agri-Environment Branch, Agri-Food and Biosciences Institute, Belfast, UK
| | - Colin McRoberts
- Agri-Environment Branch, Agri-Food and Biosciences Institute, Belfast, UK
| | - Phoebe A Morton
- Agri-Environment Branch, Agri-Food and Biosciences Institute, Belfast, UK
| | - Phil Jordan
- School of Geography and Environmental Sciences, Ulster University, Coleraine, UK
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10
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Othman NH, Alias NH, Fuzil NS, Marpani F, Shahruddin MZ, Chew CM, David Ng KM, Lau WJ, Ismail AF. A Review on the Use of Membrane Technology Systems in Developing Countries. MEMBRANES 2021; 12:30. [PMID: 35054556 PMCID: PMC8779680 DOI: 10.3390/membranes12010030] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 11/21/2021] [Accepted: 11/22/2021] [Indexed: 11/30/2022]
Abstract
Fulfilling the demand of clean potable water to the general public has long been a challenging task in most developing countries due to various reasons. Large-scale membrane water treatment systems have proven to be successful in many advanced countries in the past two decades. This paves the way for developing countries to study the feasibility and adopt the utilization of membrane technology in water treatment. There are still many challenges to overcome, particularly on the much higher capital and operational cost of membrane technology compared to the conventional water treatment system. This review aims to delve into the progress of membrane technology for water treatment systems, particularly in developing countries. It first concentrates on membrane classification and its application in water treatment, including membrane technology progress for large-scale water treatment systems. Then, the fouling issue and ways to mitigate the fouling will be discussed. The feasibility of membrane technologies in developing countries was then evaluated, followed by a discussion on the challenges and opportunities of the membrane technology implementation. Finally, the current trend of membrane research was highlighted to address future perspectives of the membrane technologies for clean water production.
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Affiliation(s)
- Nur Hidayati Othman
- School of Chemical Engineering, College of Engineering, Universiti Teknologi MARA, Shah Alam 40450, Selangor, Malaysia; (N.H.A.); (N.S.F.); (F.M.); (M.Z.S.)
| | - Nur Hashimah Alias
- School of Chemical Engineering, College of Engineering, Universiti Teknologi MARA, Shah Alam 40450, Selangor, Malaysia; (N.H.A.); (N.S.F.); (F.M.); (M.Z.S.)
| | - Nurul Syazana Fuzil
- School of Chemical Engineering, College of Engineering, Universiti Teknologi MARA, Shah Alam 40450, Selangor, Malaysia; (N.H.A.); (N.S.F.); (F.M.); (M.Z.S.)
| | - Fauziah Marpani
- School of Chemical Engineering, College of Engineering, Universiti Teknologi MARA, Shah Alam 40450, Selangor, Malaysia; (N.H.A.); (N.S.F.); (F.M.); (M.Z.S.)
| | - Munawar Zaman Shahruddin
- School of Chemical Engineering, College of Engineering, Universiti Teknologi MARA, Shah Alam 40450, Selangor, Malaysia; (N.H.A.); (N.S.F.); (F.M.); (M.Z.S.)
| | - Chun Ming Chew
- Taman Industri Meranti Perdana, Pusat Teknologi Sinar Meranti, Techkem Group, No. 6, Jalan IMP 1/3, Puchong 47120, Selangor, Malaysia;
| | - Kam Meng David Ng
- Taman Industri Meranti Perdana, Pusat Teknologi Sinar Meranti, Techkem Group, No. 6, Jalan IMP 1/3, Puchong 47120, Selangor, Malaysia;
| | - Woei Jye Lau
- Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia; (W.J.L.); (A.F.I.)
| | - Ahmad Fauzi Ismail
- Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia; (W.J.L.); (A.F.I.)
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11
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Engineered Magnetic Carbon-Based Adsorbents for the Removal of Water Priority Pollutants: An Overview. ADSORPT SCI TECHNOL 2021. [DOI: 10.1155/2021/9917444] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
This review covers the preparation, characterization, and application of magnetic adsorbents obtained from carbon-based sources and their application in the adsorption of both inorganic and organic pollutants from water. Different preparation routes to obtain magnetic adsorbents from activated carbon, biochar, hydrochar, graphene, carbon dots, carbon nanotubes, and carbon nanocages, including the magnetic phase incorporated on the solid surface, are described and discussed. The performance of these adsorbents is analyzed for the removal of fluoride, arsenic, heavy metals, dyes, pesticides, pharmaceuticals, and other emerging and relevant water pollutants. Properties of these adsorbents and the corresponding adsorption mechanisms have been included in this review. Overall, this type of magnetic adsorbents offers an alternative for facing the operational problems associated to adsorption process in water treatment. However, some gaps have been identified in the proper physicochemical characterization of these adsorbents, the development of green and low-cost preparation methods for their industrial production and commercialization, the regeneration and final disposal of spent adsorbents, and their application in the multicomponent adsorption of water pollutants.
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12
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Wu D, Ren C, Wu C, Li Y, Deng X, Li Q. Mechanisms by which different polar fractions of dissolved organic matter affect sorption of the herbicide MCPA in ferralsol. JOURNAL OF HAZARDOUS MATERIALS 2021; 416:125774. [PMID: 33857809 DOI: 10.1016/j.jhazmat.2021.125774] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 03/25/2021] [Accepted: 03/25/2021] [Indexed: 06/12/2023]
Abstract
Exogenous dissolved organic matter (DOM) modifies the sorption of 4-chloro-2-methylphenoxyacetic acid (MCPA, a polar herbicide) in soil. However, how the chemodiversity and diverse fractions of DOM affect MCPA sorption is still unknown. Here, DOM was extracted from compost and rice straw; the structure-activity correlations between DOM chemodiversity and their effects on MCPA sorption were investigated by redundancy analysis. Moreover, the mechanism involved was explored by spectroscopic techniques, microbeam and modeling. DOM mainly affected MCPA sorption by altering soil surface properties and MCPA complexed form. Hydrophobic neutral (HON) and acid insoluble matter (AIM) were the fractions of DOM that most inhibited MCPA sorption through soil pore blockage, and were related to the humic-like substances with high aromaticity and large molecular weight. The hydrophobic acid fraction (HOA) only showed an intermediate inhibition on the sorption, although the largest competitive sorption occurred. This was because HOA contained abundant aromatic acid and polar groups with moderate polarity. Thus, the reduced effect caused by competitive sorption was partly compensated by the greatest co-sorption by HOA. The hydrophilic matter (HIM) had the weakest inhibition on MCPA sorption, because this fraction was rich in simple sugars, poly- and oligosaccharides, but lacked aryl groups. The results will aid in the risk assessments and prevention of MCPA in DOM-introduced soil.
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Affiliation(s)
- Dongming Wu
- Institute of Environment and Plant Protection, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, PR China
| | - Changqi Ren
- Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, PR China
| | - Chunyuan Wu
- Institute of Environment and Plant Protection, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, PR China; Danzhou Scientific Observing and Experimental Station of Agro-Environment, Ministry of Agriculture, Danzhou 571737, PR China; Hainan Engineering Research Center for Non-Point Source and Heavy Metal Pollution Control, Haikou 571101, PR China.
| | - Yi Li
- Institute of Environment and Plant Protection, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, PR China
| | - Xiao Deng
- Institute of Environment and Plant Protection, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, PR China
| | - Qinfen Li
- Institute of Environment and Plant Protection, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, PR China; Danzhou Scientific Observing and Experimental Station of Agro-Environment, Ministry of Agriculture, Danzhou 571737, PR China; Hainan Key Laboratory of Tropical Eco-Circuling Agriculture, Haikou 571101, PR China.
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