Font Size: a A A

The Studys Of Organochlorine Pesticide Pollution And Transferring Disciplinarian In The Areas Of Iron And Steel Corporation Of Anshan

Posted on:2015-11-03Degree:MasterType:Thesis
Country:ChinaCandidate:X G LaiFull Text:PDF
GTID:2271330470979769Subject:Chemical Engineering and Technology
Abstract/Summary:PDF Full Text Request
Organochlorine pesticides(OCPs) are a group of active organic pollutants,which wil cause cancer or teratogenesis, and will greatly harm the environment and human healthy.The purpose of this dissertation is to researched pollution situation of organochlorine pesticides inside soil and air, migration patterns between soil/gas in the areas of iron and steel corporation of Anshan.Eleven Sampling points were deployed in this study, based on not only the city distribution and environmental quality of Anshan, but also the distribution of iron and steel corporation of Anshan. Six sampling points were deployed in the areas of iron and steel corporation of Anshan, two sampling points around Anshan iron and steel,and two sampling points are setting in residential areas, the qianshan mountain as the control point. The traffic air samplers(TSP) were used to collect air samples, soil samples were collected by stainless steel shovel. All samples were analyzed through type extracting, rotary evaporation, K-D concentration, gas chromatography. Fanally, migration patterns of OCPs were analyzed between the soil and air through multiple medium fugacity model. The results are as followings:(1) The total concentration minimum component of Organochlorine monomer proportion in the Anshan air for the whole year is the δ-666, the numerical value is 1.67%, the highest component is methoxychlor, the figure was 17.8%, the components and Σ OCPs concentration to the highest point is Cheng ang pu point.(2) The lowest Organochlorine monomer proportion of total concentration in soil is heptachlor in Anshan, the figure was 0.81%, the highest component is methoxychlor, the figure was 18.4%. In addition to the highest concentration of the γ-666 and 666 is the first steel plant, the rest of the components and the highest ΣOCPs concentration is the point of steel-cast.(3) The maximum correlation coefficient of organochlorine pesticides in the air and soil of Anshan is significantly related and highly relevant.Σ OCPs is the significant correlation all the year.Apart from migration trend of a few point organochlorine monomer by soil into air, the others are migrate by air into soil, that is consistent with the organochlorine pesticides using in Anshan iron and steel and the surrounding.In the migration patterns of 10 kinds of organochlorine pesticides, α-666, β- 666 and γ- 666 is the largest.In all can detected the three kinds of pollutants,high the largest is 95%, the lowest is 43% and the average is 87% in the total exchange flux.Visible in the 666 is the main pollutant of organochlorine pesticides, that are persistent and the pollution intensity is great.
Keywords/Search Tags:Organochlorine pesticides(OCPs), Pollution status, Many medium fugacity model, Migration
PDF Full Text Request
Related items