Physical, Chemical, Biological, and Synergistic Technologies for Remediation of Pesticide-Contaminated Soil

Reviews of Environmental Contamination and Toxicology, Год журнала: 2024, Номер 262(1)

Опубликована: Март 6, 2024

Язык: Английский

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2D model of groundwater flow and total dissolved HCH transport through the Gállego alluvial aquifer downstream the Sardas landfill (Huesca, Spain)

Journal of Contaminant Hydrology, Год журнала: 2024, Номер 265, С. 104370 - 104370

Опубликована: Июнь 1, 2024

The organic pollutants disposed at the Sardas landfill in Sabiñánigo (Huesca, northeastern Spain) by INQUINOSA lindane factory have reached Gállego alluvial aquifer and could affect reservoir. daily oscillations of reservoir water level produce a tidal effect on piezometric heads aquifer. These are transmitted damped way with time lag, thus attesting that silting sediments natural silts interposed between layer sands gravels. A 2D finite element groundwater flow total dissolved hexachlorocyclohexane (HCH) transport model through is presented here. was constructed to: (1) Quantify effect, produced fluctuations aquifer; (2) Estimate hydrodynamic parameters gravels; 3) vertical hydraulic conductivity silts; (4) aquifer/reservoir interactions. reproduces dynamics attests velocity direction changes response to level. Model results reproduce measured well hydrographs Darcy derived from tracer tests confirm validity conceptual model. HCH simulates evolution contaminant plume. computed concentrations mass outflux very sensitive source terms distribution coefficient, Kd. best fit plumes September 2010 December 2020 obtained Kd ranging 1 3 L/kg. flux leaving site towards ranges 0.6 kg/year for = L/kg 3.1 findings this study will be most useful planning designing remedial containment actions other similar lindane-affected sites.

Язык: Английский

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A comprehensive assessment of heavy metals, VOCs and petroleum hydrocarbon in different soil layers and groundwater at an abandoned Al/Cu industrial site

Ecotoxicology and Environmental Safety, Год журнала: 2024, Номер 284, С. 116927 - 116927

Опубликована: Авг. 30, 2024

Compound pollution at industrial sites impedes urban development, especially when there is a lack of understanding about the spatial variations internal in areas producing light-weight materials. In this study, distribution and ecological risks potentially toxic elements (PTEs), volatile organic compounds (VOCs), petroleum hydrocarbons (C10-40) soil groundwater an Al/Cu (aluminum/copper) site have been analyzed comprehensively. Results revealed progressive clustering pollutants different layers, which indicated varying levels penetration migration from surface downward. Furthermore, severity varied according to pollutant type, with Cu (5-10,228 mg kg

Язык: Английский

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Organochlorine Pesticides in Soil–Groundwater–Plant System in a Famous Agricultural Production Area in China: Spatial Distribution, Source Identification and Migration Prediction

Water, Год журнала: 2023, Номер 15(23), С. 4147 - 4147

Опубликована: Ноя. 29, 2023

Being a famous hometown of vegetables in China, Shouguang City has long history vegetable cultivation and is comprehensive national commodity base for fruits. In recent decades, with the expansion agricultural production, use pesticides increasing. Although organochlorine (OCPs) have been banned, there are still some residues soil, groundwater other media. The study on migration OCPs soil great importance maintenance food security. Using methods hydrogeological survey, laboratory testing numerical simulation, spatial distribution characteristics, sources pollution degree were analyzed, transformation soil–groundwater was dynamically simulated predicted. showed that many kinds residual environment. hexachlorocyclohexane (HCHs) topsoil area mainly due to lindane, main source dichlorodiphenyltrichloroethane (DDTs) DDTs history. contents HCHs, hexachlorobenzene at low level, while content endosulfan metabolite sulfate comparatively higher. years, generally decreased. indexes can meet Standards Drinking Water quality China. It predicted HCH pollutants would be distributed Gucheng Street, Shangkou Town, its south where concentration exceeds 3 ng/L 240 km2. DDT east north City, beyond 0.6 200 Endosulfan Street Office, 1.5 will exceed 150 Hexachlorobenzene (HCB) Fengcheng west Nancha River northeast, 0.2 enriched monitoring data planting areas provided reference analysis, prediction, prevention OCPs.

Язык: Английский

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Assessing Organochlorine Pesticide Behavior in Agricultural Watershed Soil, Water and Sediment: A Dynamic Modeling Approach

Soil and Sediment Contamination An International Journal, Год журнала: 2024, Номер unknown, С. 1 - 25

Опубликована: Окт. 8, 2024

The utilization of pesticides has experienced a substantial rise in order to enhance both the quantity and caliber produced goods. Agricultural runoff, major source nonpoint pollution, adversely impacts surface water, groundwater, soil sediment quality watershed. Especially, organochlorine have adverse effects on environment because their toxicity, persistence bioaccumulation. In this study, presence (DDTs- dichlorodiphenyltrichloroethane HCHs- hexachlorocyclohexane) dryland agricultural watershed, was determined. For purpose, soil, water samples from landscape pond were collected. concentrations sediment, ranged 0.0005 0.0138 μg/L, 0.03 1.02 μg/kg, 0.54 52 respectively. these poses long-term risks terrestrial aquatic ecosystems. Sediment, as significant reservoir for contaminants, can act secondary releasing back into column under certain environmental conditions. Similarly, contamination not only affects plant health productivity but also leads further leaching runoff bodies. behavior toxic substance environment, which is pesticide, well-mixed lake modeled using mass balances lake. Statistical analysis, including paired t-test calculation Nash-Sutcliffe index, confirms consistency reliability model's predictions compared observed data. Simulated closely matched values, distribution patterns trends remained consistent across different months. Moreover, Risk Quotient (RQ) DDTs HCHs less than 0.1, indicating low ecological risk.

Язык: Английский

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Unmasking the spread, carcinogenic-non carcinogenic risk characterization, and source fingerprinting of organochlorine pesticides (OCPs) in soil and vegetables of Gaya, Bihar, India

Environmental Geochemistry and Health, Год журнала: 2024, Номер 46(12)

Опубликована: Ноя. 7, 2024

Язык: Английский

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