کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8853478 | 1618904 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Chemical speciation and risk assessment of cadmium in soils around a typical coal mining area of China
ترجمه فارسی عنوان
فرمول شیمیایی و ارزیابی ریسک کادمیوم در خاک های اطراف یک منطقه معدنکاری معمولی در چین
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کلمات کلیدی
شکل گیری شیمیایی، ارزیابی ریسک زیست محیطی، کادمیوم، آلودگی خاک،
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
شیمی زیست محیطی
چکیده انگلیسی
The distribution characteristics of Cadmium (Cd) fractions in soils around a coal mining area of Huaibei coalfield were investigated, with the aim to assess its ecological risk. The total Cd concentrations in soils ranged from 0.05 to 0.87â¯mg/kg. The high percentage of phyto-available Cd (58%) when redox or base-acid equilibria changed. Soil pH was found to be a crucial factor affecting soil Cd fraction, and carbonate-bound Cd can be significantly affected by both organic matter and pH of soils. The static ecological evaluation models, including potential ecological risk index (PERI), geo-accumulation index (Igeo) and risk assessment code (RAC), revealed a moderate soil Cd contamination and prensented high Cd exposure risk in studied soils. However, the dynamic evaluation of Cd risk, determined using a delayed geochemical hazard (DGH), suggested that our studied soils can be classified as median-risk with a mean probability of 24.79% for Cd DGH. These results provide a better assessment for the risk development of Cd contamination in coal mining areas.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ecotoxicology and Environmental Safety - Volume 160, 30 September 2018, Pages 67-74
Journal: Ecotoxicology and Environmental Safety - Volume 160, 30 September 2018, Pages 67-74
نویسندگان
Siwei Cheng, Guijian Liu, Chuncai Zhou, Ruoyu Sun,