HCHs and DDTs in Yellow River of Henan section—a typical agricultural area in China: levels, distributions and risks

Feng, Jinglan; Hu, Peng-Tuan; Zhang, Fei; Sun, Jian

doi:10.1007/s10653-015-9787-8

Cited by 10 publications

(4 citation statements)

References 41 publications

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“…The BHCs were also detected in all sites with concentrations of 13.6 ± 2.88 to 21.0 ± 2.83 ng/L (Table ). These concentrations were slightly higher than previous data in the Pearl River (0.21–5.12 ng/L) , but in the similar range of BHC concentrations in other rivers in China (1.10–290 ng/L) .…”

Section: Resultscontrasting

confidence: 54%

Synthesis and application of a novel solid‐phase extraction adsorbent for multiresidue analysis of insecticides in water

Xiong

et al. 2017

J of Separation Science

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A new solid-phase adsorbent was synthesized for the simultaneous enrichment of multiple classes of trace insecticides (neonicotinoids, organophosphates, fiproles, and organochlorines) in water. The adsorbent was spherical with a diameter, surface area, average pore volume, and pore size of approximately 5 μm, 341 m /g, 0.092 m /g, and 2.22 nm, respectively. Extraction conditions were optimized, including water pH and the type and volume of the rinsing and eluting solvents. After extraction, target insecticides were analyzed by gas chromatography with mass spectrometry and high-performance liquid chromatography with tandem mass spectrometry. The recovery of neonicotinoids ranged from 63.0 to 124%, except for clothianidin (40.1-52.9%). Recoveries of organophosphates, fiproles, and organochlorines were in the ranges of 37.0-102, 64.0-101, and 42.0-69.3%, respectively. Relative standard deviations were <20% except for profenofos (5.1-30%) and method detection limits were 1.8-12.7 ng/L, suggesting that the precision and accuracy of the developed method were viable. At environmentally relevant concentrations, the new adsorbent achieved comparable recoveries of target insecticides to hydrophilic-lipophilic balance adsorbent while providing an additional advantage by further reducing matrix effects. Field water samples from the Pearl River in Guangzhou, China were analyzed, and the frequent detection of neonicotinoids raises concerns about their aquatic risk.

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Section: Resultscontrasting

confidence: 54%

Synthesis and application of a novel solid‐phase extraction adsorbent for multiresidue analysis of insecticides in water

Xiong

et al. 2017

J of Separation Science

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“…Total DDTs in a typical agricultural area of China range from 0.00442 to 0.269 ng/mL in surface water [42]. Feng et al, 2013 reported DDT levels in the range of 0.2 to 9.3 ng/mL in the water of the Yangtze River Delta, China, which is used for rice production [43].…”

Section: Discussionmentioning

confidence: 99%

Levels and Distribution of Pollutants in the Waters of an Aquatic Ecosystem in Northern Mexico

Ochoa-Rivero

Reyes-Fierro

Peralta-Pérez

et al. 2017

IJERPH

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The availability of good quality water resources is essential to ensure healthy crops and livestock. The objective of this study was to evaluate the level of pollution in Bustillos Lagoon in northern Mexico. Physical-chemical parameters like sodium, chloride, sulfate, electrical conductivity, nitrates, and the pesticide dichlorodiphenyltrichloroethane (DDT) were analyzed to determine the water quality available in the lagoon. Although DDT has been banned in several countries, it is still used for agricultural purposes in Mexico and its presence in this area had not been analyzed previously. Bustillos Lagoon was divided into three zones for the evaluation: (1) industrial; (2) communal lands; and (3) agricultural. The highest concentrations of sodium (2360 mg/L) and SAR (41 meq/L) reported in the industrial zone are values exceeding the United Nations Food and Agricultural Organization (FAO) irrigation water quality guidelines. DDT and its metabolites were detected in all of the 21 sites analyzed, in the agricultural zone ∑DDTs = 2804 ng/mL, this level is much higher than those reported for other water bodies in Mexico and around the world where DDT has been used heavily. The water in the communal zone is the least contaminated, but can only be recommended for irrigation of plants with high stress tolerance and not for crops.

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“…However, in the seventies, most of the countries banned its use due to its toxicity 24 . Currently, in humans, a large percentage of DDT has already been transformed into its metabolite DDE (1,1′-(2,2-dichloroethene-1,1-diyl)bis(4-chlorobenzene)) 25,26 , but DDT still prevails in samples from the environment 25,27 . Moreover, some countries still use DDT as a pesticide in the fight against malaria 28 .…”

Section: Introductionmentioning

confidence: 99%

Upregulation of vitamin D-binding protein is associated with changes in insulin production in pancreatic beta-cells exposed to p,p′-DDT and p,p′-DDE

Pavlíková

Daniel

Šrámek

et al. 2019

Sci Rep

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Persistent organochlorine pollutants (POPs) gradually accumulate in the human organism due to their presence in the environment. Some studies have described a correlation between the level of POPs in the human body and the incidence of diabetes, but we know little about the direct effect of POPs on pancreatic beta-cells. We exposed pancreatic beta-cells INS1E to non-lethal concentrations of p,p′-DDT (1,1′-(2,2,2-Trichloroethane-1,1-diyl)bis(4-chlorobenzene)) and p,p′-DDE (1,1′-(2,2-dichloroethene-1,1-diyl)bis(4-chlorobenzene)) for 1 month, and assessed changes in protein expression and the intracellular insulin level. 2-D electrophoresis revealed 6 proteins with changed expression in cells exposed to p,p′-DDT or p,p′-DDE. One of the detected proteins – vitamin D-binding protein (VDBP) – was upregulated in both cells exposed to p,p′-DDT, and cells exposed to p,p′-DDE. Both exposures to pollutants reduced the intracellular level of insulin mRNA, proinsulin, and insulin monomer; p,p′-DDT also slightly reduced the level of hexameric insulin. Overexpression of VDBP caused by the stable transfection of beta-cells with the gene for VDBP decreased both the proinsulin and hexameric insulin level in beta-cells similarly to the reduction detected in cells exposed to p,p′-DDT. Our data suggest that in the cells exposed to p,p′-DDT and p,p′-DDE, the increased VDBP protein level decreased the proinsulin expression in an unknown mechanism.

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HCHs and DDTs in Yellow River of Henan section—a typical agricultural area in China: levels, distributions and risks

Cited by 10 publications

References 41 publications

Synthesis and application of a novel solid‐phase extraction adsorbent for multiresidue analysis of insecticides in water

Synthesis and application of a novel solid‐phase extraction adsorbent for multiresidue analysis of insecticides in water

Levels and Distribution of Pollutants in the Waters of an Aquatic Ecosystem in Northern Mexico

Upregulation of vitamin D-binding protein is associated with changes in insulin production in pancreatic beta-cells exposed to p,p′-DDT and p,p′-DDE

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