Petroleum Hydrocarbon Contaminated Sites Health Risk Assessment And Case Analysis

Is due to accumulation of contaminated sites, storage, disposal or other means (such as transfers) carrying hazardous substances on human health and environmental harm, or potential risk areas. This selection of petroleum hydrocarbon contaminated sites and to conduct health risk assessment of Baoding, a case study of a contaminated site. Petroleum hydrocarbon contaminated sites is typical of contaminated sites, due to a variety of toxic organic compounds containing petroleum hydrocarbons and the suspect has a "three-induced" effect and more and more attention. Based on the domestic and international literature, to understand the health risk assessment of contaminated sites at home and abroad of the methods and techniques. Situation of China and petroleum hydrocarbons in contaminated sites management technology needs, according to China’s characteristics of petroleum hydrocarbon contaminated sites. In-depth petroleum hydrocarbon contaminated sites to carry out the health risk assessment technique, building the actual needs of the petroleum hydrocarbon contaminated sites health risk assessment methodology and technology system to improve petroleum hydrocarbon contaminated sites in China on the management level and response to site contamination risks.After comparing the United States Academy of Sciences in 1983 proposed four-step health risk assessment and the United States Environmental Protection Agency issued in 1989, "Superfund site health risk assessment handbook" health risk assessment made in four-step, the final four steps identified by the United States Environmental Protection Agency Act as the basic framework and petroleum hydrocarbon contaminated sites with our reality, health risk assessment.This first data investigation, and based on foreign soil baseline risk analysis and integration of priority pollutants at home and abroad based on the blacklist, the final selection of benzene, toluene and dichloromethane, chloroform, 1,2 - dichloro ethane and 1,2 - dichlorobenzene petroleum hydrocarbon contaminated sites as priority pollutants.Based on the toxicity assessment, exposure assessment and risk characterization study, through model selection and applicability of evaluation, selected U.S. RBCA (Risk-Based Corrective Action) model of health risk assessment, and an oil-contaminated sites in Baoding, for example, by sample analysis and model parameter identification, use of RBCA model, through the water, breathing and skin contact are three ways to enter the body exposed to health risks posed by evaluation, the evaluation process, the concentration of pollutants into the maximum concentration and average concentrations were evaluated, comparing it selects the last maximum concentration of petroleum hydrocarbon contaminated sites in China health risk assessment. Quantification of petroleum hydrocarbon pollution on human health risk levels and risk probability. Petroleum hydrocarbon contaminated sites established health risk assessment of the parameters of system, and health risks of various parameters on the results of the analysis.