Application of Bio-Toxicity Test on Investigation and Assessment of Incident Caused Contaminated Sites

2018 International Conference on Construction, Aviation and Environmental Engineering

生态环境科学;生物科学

Zhu, Chi^1 ; Qu, Changsheng^1 ; Ding, Liang^1 ; Zhao, Wei^2 ; Zhang, Qiang^1 ; Wang, Shui^1 ; Wang, Dong^1

Key Laboratory of Environmental Engineering, Jiangsu Provincial Academy of Environmental Science, Nanjing, Jiangsu

210036, China^1

School of the Environment, Nanjing University, Nanjing, Jiangsu

210036, China^2

关键词: Acute toxicity test;    Biological toxicity;    Contaminated sites;    Contaminated soils;    Environmental emergencies;    Government departments;    Pharmaceutical intermediates;    Scientific researches;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/233/5/052048/pdf
DOI  :  10.1088/1755-1315/233/5/052048

来源: IOP

【 摘 要 】

Earthworm acute toxicity, plant seed germination bio-toxicity tests were conducted to evaluate the contaminated site polluted by a pharmaceutical intermediates accident. In the earthworm acute toxicity test, the mortality rate of earthworms in the control group was 0, while the earthworms mortality rate in the two groups of contaminated soil both reached 100% within 24h and three days respectively. The plant seed germination rates of four species except ryegrass were all less than 20% in the treatment dose (contaminated soil: reference soil, 25%). The test results indicated that the soil samples showed high biological toxicity. Eco-toxicity tests can effectively characterize the ecotoxicity and be used in quick identification of accident hazard and risk assessment in environmental emergency response. In addition, it can provide government departments with the basis for the environmental management and provide technics of detailed site survey and risk assessment for relevant scientific research departments and enterprises as well.