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421.
Samuel Legeay Pierre-André Billat Nicolas Clere Fabrice Nesslany Sébastien Bristeau Sébastien Faure Christophe Mouvet 《Environmental science and pollution research international》2018,25(15):14313-14323
Chlordecone (CLD) is a chlorinated hydrocarbon insecticide, now classified as a persistent organic pollutant. Several studies have previously reported that chronic exposure to CLD leads to hepatotoxicity, neurotoxicity, raises early child development and pregnancy complications, and increases the risk of liver and prostate cancer. In situ chemical reduction (ISCR) has been identified as a possible way for the remediation of soils contaminated by CLD. In the present study, the objectives were (i) to evaluate the genotoxicity and the mutagenicity of two CLD metabolites formed by ISCR, CLD-5a-hydro, or CLD-5-hydro (5a- or 5- according to CAS nomenclature; CLD-1Cl) and tri-hydroCLD (CLD-3Cl), and (ii) to explore the angiogenic properties of these molecules. Mutagenicity and genotoxicity were investigated using the Ames’s technique on Salmonella typhimurium and the in vitro micronucleus micromethod with TK6 human lymphoblastoid cells. The proangiogenic properties were evaluated on the in vitro capillary network formation of human primary endothelial cells. Like CLD, the dechlorinated derivatives of CLD studied were devoid of genotoxic and mutagenic activity. In the assay targeting angiogenic properties, significantly lower microvessel lengths formed by endothelial cells were observed for the CLD-3Cl-treated cells compared to the CLD-treated cells for two of the three tested concentrations. These results suggest that dechlorinated CLD derivatives are devoid of mutagenicity and genotoxicity and have lower proangiogenic properties than CLD. 相似文献
422.
Household adjustment to flood risk: a survey of coastal residents in Texas and Florida,United States 下载免费PDF全文
Individual households have increasingly borne responsibility for reducing the adverse impacts of flooding on their property. Little observational research has been conducted, however, at the household level to examine the major factors contributing to the selection of a particular household adjustment. This study addresses the issue by evaluating statistically the factors influencing the adoption of various household flood hazard adjustments. The results indicate that respondents with higher‐value homes or longer housing tenure are more likely to adopt structural and expensive techniques. In addition, the information source and the Community Rating System (CRS) score for the jurisdiction where the household is located have a significant bearing on household adjustment. In contrast, proximity to risk zones and risk perception yield somewhat mixed results or behave counter to assumptions in the literature. The study findings provide insights that will be of value to governments and decision‐makers interested in encouraging homeowners to take protective action given increasing flood risk. 相似文献
423.
Obiri S 《Environmental monitoring and assessment》2007,130(1-3):455-463
Concentrations of heavy metals in the borehole at Dumasi in the Wassa West District of the Republic of Ghana have been measured
in this study. The concentrations of the following metals in the ground water from Dumasi borehole are: Iron (Fe) – 7.52 ppm,
Manganese (Mn) – 1.11 ppm, Arsenic (As) – 4.52 ppm, Chromium (Cr) – 0.026 ppm, Cobalt (Co) – 0.01 ppm, Zinc (Zn) – 0.007 ppm,
Cadmium (Cd) – 0.002 ppm and Lead (Pb) – 0.005 ppm. The results of the study show that resident adults and children who use
water from the boreholes are at serious risk from exposure to health hazards associated with exposure to the above metals
in the boreholes in Dumasi. If the results of this study are applied to other mining communities, which lie on the Birimian
and Tarkwaian rock system, then the residents are at serious risk from exposure to toxic metals from drinking water from the
boreholes dug for them by mining companies operating in their communities. 相似文献
424.
Habitat use by 4 radio-tagged red-tailed hawks (Buteo jamaicensis) was monitored during 708 transmitter-days in coal surface-mined areas in northern West Virginia and southwestern Pennsylvania in 1977 and 1978. Mean cumulative home range size for the 3 adults was 316.8 ha (3.2 km2). Red-tailed hawks showed significant (P<0.005) tendencies to elect certain habitats over others. Descending order of habitat electivity was: 1) woods edge with open area not surfacemined. 2) woods edge with surface-mined area. 3) deciduous woods, 4) open area not surface-mined, and 5) surface-mined area. Red-tailed hawks' flexibility in niche requirements allowed them to exploit reclaimed area. Recommendations for surface mine reclamation are given. 相似文献
425.
426.
Ho Long Jerves-Cobo Ruben Barthel Matti Six Johan Bode Samuel Boeckx Pascal Goethals Peter 《Environmental science and pollution research international》2022,29(25):37277-37290
Environmental Science and Pollution Research - Rivers act as a natural source of greenhouse gases (GHGs). However, anthropogenic activities can largely alter the chemical composition and microbial... 相似文献
427.
Data obtained from full‐time employees of a public sector organization in India were used to test a social exchange model of employee work attitudes and behaviors. LISREL results revealed that whereas the three organizational justice dimensions (distributive, procedural and interactional) were related to trust in organization only interactional justice was related to trust in supervisor. The results further revealed that relative to the hypothesized fully mediated model a partially mediated model better fitted the data. Trust in organization partially mediated the relationship between distributive and procedural justice and the work attitudes of job satisfaction, turnover intentions, and organizational commitment but fully mediated the relationship between interactional justice and these work attitudes. In contrast, trust in supervisor fully mediated the relationship between interactional justice and the work behaviors of task performance and the individually‐ and organizationally‐oriented dimensions of citizenship behavior. Copyright © 2002 John Wiley & Sons, Ltd. 相似文献