A New Method for Environmental Risk Assessment of Pollutants Based on Multi-Dimensional Risk Factors

Toxics, Год журнала: 2022, Номер 10(11), С. 659 - 659

Опубликована: Окт. 30, 2022

Pollutant discharge causing the deterioration of watershed environment has seriously threatened human health and ecosystem function. The importance improving risk warning system is becoming more prominent. Traditional chemical assessment methods focused on toxicity exposure pollutants without considering impact persistent in different environmental media. In this study, a new approach was proposed to reflect multi-dimensional evaluation with synthetic factor (SRF) pollutants. integrating parameters SRF include endpoint values, level, properties, compartment features. Selected pesticides, perfluorinated compounds, organophosphate esters endocrine disruptors were analyzed by traditional methods. results showed higher outcome using analysis for PFOS, imazalil, testosterone, androstenedione bisphenol A, which from those obtained method, consistent existing management. study demonstrated that method improved various media robust fashion, also provided accurate decision basis ecological protection.

Язык: Английский

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Analysis of the Spatial Distribution Characteristics of Emerging Pollutants in China

Water, Год журнала: 2023, Номер 15(21), С. 3782 - 3782

Опубликована: Окт. 29, 2023

Pollutant types are increasing along with the rapid development of society and economy. Some emerging pollutants from chemicals have begun to appear endanger public ecosystem health. However, research pollutant monitoring technology is still in its infancy, no complete system place. This makes it impossible access identify spatial pattern pollutants. Therefore, this paper reviews existing quantitative results on four common China’s water environment—namely, endocrine disruptors, brominated flame retardants, perfluorinated compounds, microplastics—extracts case studies, outlines distribution characteristics environment. The show that a large area has covered most China. level pollution correlates economic economically developed regions such as Yangtze River Delta, Pearl Beijing–Tianjin–Hebei region significantly higher than other regions. study provides reference for prevention control

Язык: Английский

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Thermal Degradation Process of Ethinylestradiol—Kinetic Study

Processes, Год журнала: 2022, Номер 10(8), С. 1518 - 1518

Опубликована: Авг. 2, 2022

The present study reports the results obtained after analysis of thermal stability and decomposition kinetics widely used synthetic derivative estradiol, ethinylestradiol (EE), as a pure active pharmaceutical ingredient. As investigational tools, Fourier transformed infrared spectroscopy (FTIR), analysis, modeling EE were employed. kinetic was realized using three methods, namely Kissinger, Friedman, Flynn-Wall-Ozawa. are in good agreement, suggesting that main process takes place 175–375 °C temperature range is single-step process, invariable during modification heating rate sample.

Язык: Английский

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Occurrence, spatial distribution, risk assessment, and management of environmental estrogens in surface waters of the Taihu basin

Environmental Chemistry, Год журнала: 2024, Номер 20(8), С. 339 - 353

Опубликована: Фев. 13, 2024

Environmental context estrogens can disrupt the normal functioning of endocrine systems, and their occurrence in drinking water sources could cause potential health risk. We investigated concentrations four lakes from Taihu Basin, found that BPA EE2 were elevated some sites. However, all environmental below national standards, caused no threat to local population. Rationale The Basin is a critical freshwater ecosystem susceptible contamination various anthropogenic activities. (also known as disrupting chemicals, EDCs) are exogenous substances systems. by EDCs primarily effluents sewage treatment plants livestock poultry farms. In this study, we assessed spatial distribution risks surface basin. Various statistical evaluations employed establish connections between measured concentration heavy elements, physicochemical parameters, identify these contaminants. Methodology Water samples 44 sampling points five Suzhou taken for evaluation estrogens. Gas chromatography–mass spectrometry was used identification estrone (E1), estradiol (E2), ethinyl (EE2) bisphenol A (BPA). Inductively coupled plasma–mass element samples. Results estrogen detected ranging 0.001 209 ng L–1, with highest attributed BPA, whereas E1, E2 comparatively lower. Correlation estrogens, parameters contents revealed positive correlation (P < 0.05) total chromium contents. Consequently, risk entropy value Shanghu Lake exceeded 0.5, indicating potentially high estrogenic activity. Discussion widespread raise urgent concerns, highlighting need frequent monitoring waters throughout year mitigate future. Our results suggest exists Potential methods disruptors have been proposed, which provide actionable plans stakeholders.

Язык: Английский

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Pollution characteristics and risk assessment of endocrine-disrupting chemicals in surface water of national (freshwater) aquatic germplasm resource reserves in Guangdong Province

Environmental Science Processes & Impacts, Год журнала: 2024, Номер unknown

Опубликована: Янв. 1, 2024

EE2, E1, BPA, NP, and E2 were identified as high-risk substances based on comprehensive ecological risk evaluation fish are the most sensitive organisms.

Язык: Английский

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Mass load and source apportionment of pharmaceutical and personal care product in the Wuhan section of the Yangtze River, China

The Science of The Total Environment, Год журнала: 2024, Номер 959, С. 178222 - 178222

Опубликована: Дек. 31, 2024

Язык: Английский

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