Spatial distribution and seasonal variation of four current-use pesticides (CUPs) in air and surface water of the Bohai Sea, China

Liu, Lin; Tang, Jianhui; Zhong, Guangcai; Zhen, Xiaomei; Pan, Xiaohui; Tian, Chongguo

doi:10.1016/j.scitotenv.2017.11.282

Cited by 54 publications

(25 citation statements)

References 51 publications

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“…However, trifluralin and trifluralin‐bearing products are still used in some countries, and their residues could be found in environmental water, soil and even aquatic product samples . In order to determine the residue trifluralin, several analytical strategies, including chromatographic methods, electrochemical methods, and fluorescent methods, have been developed in recent years.…”

Section: Introductionmentioning

confidence: 99%

Green Synthesis of Fluorescent Carbon Dots from Cherry Tomatoes for Highly Effective Detection of Trifluralin Herbicide in Soil Samples

et al. 2020

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A simple, economical and green synthesis method for the preparation of water‐soluble carbon quantum dots (CQDs) has been developed via hydrothermal treatment of fresh cherry tomatoes without any other reagents. The as‐prepared CQDs exhibited excellent excitation‐wavelength‐dependent photoluminescence property and high selective response to trifluralin over other selected herbicide in soil samples, thus, a CQDs‐based sensing platform for trifluralin determination was established by evaluating the change of the fluorescence intensity of CQDs with trifluralin. Under the optimized conditions, the sensing system displayed a linear relationship with the trifluralin concentrations in the range of 0.050‐200 μM, and the limit of detection (LOD) was 0.5 nM. Satisfactory repeatability, reproducibility, recovery results (94.6‐103.2%) are achieved for the determination of trifluralin in real soil samples. Real sample study in soil samples revealed that the proposed sensing system was promising for applications in environmental monitoring.

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Section: Introductionmentioning

confidence: 99%

Green Synthesis of Fluorescent Carbon Dots from Cherry Tomatoes for Highly Effective Detection of Trifluralin Herbicide in Soil Samples

et al. 2020

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“…Seasonal changes in CUP concentrations are dramatic, with temporal and spatial changes varying globally. During spring and summer when the application time is, high concentrations of CUPs in both rivers and coastal seawater are correlated with the intense agricultural practices (Liu et al, ; Schottler et al, ), although there should be a time lag between agricultural use and peak levels. In the atmosphere, CUPs are volatilized during field spraying (Li, ) and enter global atmospheric circulation.…”

Section: Introductionmentioning

confidence: 99%

Spatial Distributions and Seasonal Changes of Current‐Use Pesticides from the North Pacific to the Arctic Oceans

et al. 2019

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Distributions of eight targeted current‐use pesticides (CUPs) chloroneb, simazine, atrazine, alachlor, dacthal, chlorobenzilate, methoxychlor, and permethrin were investigated in seawater and the atmosphere in a region covering the North Pacific to the Arctic Oceans during the 7th and 8th Chinese National Arctic Research Expedition (2016 and 2017) voyages of the research vessel R/V Xuelong (Snow Dragon in English). Total CUP concentrations in seawater have prominent seasonal and latitudinal trends, with higher concentrations occurring at lower latitudes in early summer. The major contributors of the CUPs (∑8CUP) did not alter over different seasons with dominant chloroneb, alachlor, and atrazine accounting for more than 90%, but their concentrations did have marked seasonal changes. However, the compositions of the eight analyzed CUPs varied indistinctly between seasons indicating a possible combined environmental impact on these compounds rather than the effects of individual chemical properties. Three‐day backward air mass trajectories indicate that atmospheric masses from northeastern China are responsible for the high concentrations of CUPs in East China and Japan Seas, whereas those from the North Atlantic Ocean contribute to the low levels in local area. Fugacity ratios indicate potential volatilization and equilibrium of chloroneb in the Canada Basin of the Arctic Ocean and Japan Sea, respectively, and deposition of other CUPs in both regions. However, atmospheric concentrations are decoupled from those in seawater, which indicates a low exchange rate.

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“…CUPs are able to persist in the gas phase of air samples irrespective of land use intensity or sampling year. In studies at various points on the planet, the atrazine and terbuthylazine herbicides and the carbaryl and chlorpyrifos insecticides were detected with high frequency [ 73 , 74 ]. POPs are transported in the environment over long distances as well [ 70 , 75 , 76 ].…”

Section: Transport Pathways Of Pesticides In the Environmentmentioning

confidence: 99%

“…The movement of pesticides to remote regions is likely facilitated by a combination of properties: both the properties of pesticides (low solubility in water) and climatic factors (dry weather and relatively high temperatures in spring and summer) [ 77 ]. An important source of CUPs in the air is volatilization from surface water [ 74 ]. The elevated ambient temperatures may accelerate the volatilization of pesticides in warm seasons.…”

Section: Transport Pathways Of Pesticides In the Environmentmentioning

confidence: 99%

Pesticides: formulants, distribution pathways and effects on human health – a review

et al. 2021

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Spatial distribution and seasonal variation of four current-use pesticides (CUPs) in air and surface water of the Bohai Sea, China

Cited by 54 publications

References 51 publications

Green Synthesis of Fluorescent Carbon Dots from Cherry Tomatoes for Highly Effective Detection of Trifluralin Herbicide in Soil Samples

Green Synthesis of Fluorescent Carbon Dots from Cherry Tomatoes for Highly Effective Detection of Trifluralin Herbicide in Soil Samples

Spatial Distributions and Seasonal Changes of Current‐Use Pesticides from the North Pacific to the Arctic Oceans

Pesticides: formulants, distribution pathways and effects on human health – a review

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