| This article introduced the phthalic acid ester's physics and chemistry nature, the harm, the pollution present situation, whose behavior has been simultaneously discussed in each kind of ambient medium environment. Six kinds of phthalic acid ester announced by EPA having been chosen as the goal pollutant in the article, the author has carried on the analysis to the phthalic acid ester's content and the distribution characteristic in Guizhou Province ambient medium (taking soil as key object of study). The results are shown as follows:1.In the formerly processes to the samples, the author uses the different method to the different medium and. When taking measurement, using the with 530μm capillary gas chromatography(GC) - the hydrogen flame ionization detector (FID) the method. The above method has the sample amount used to be few, first processes simply, the returns-ratio is high, the accuracy is high, reproduction quality good and so on characteristics.2.According to the evaluation criteria of country "Sewage Synthesis Emission standard" (GB8978-1996) and the DBP and DOP density lowering the emission limit, Nanming River sewage satisfies the primary standard. Moreover "Surface water Environment quality Standard" (GB3838-2002) stipulated according to the country that has water sample DBP not to have exceeding the allowed figure, DEHP to exceed the allowed figure completely. They are higher than national standards 1.0~3.8, 1.9~4.0 times separately. Explained that the Guiyang surface water already received the phthalic acid ester material the pollution.3.Determines in the Guizhou Province nine areas 151 soil samples, six kinds of PAEs compounds total content (∑PAEs) between 0.0188~2.84mg/kg, 90.1% distribute below 1.0 mg/kg; In various local soil the PAEs compound detection rate highest three kinds respectively are BBP>DBP>DEHP, the DBP content is highest (accounts for total quantity 52.6%), next is BBP (accounts for 30.5%), the DEHP content is lowest (accounts for 15.8%); Presses down, the next three sampling, each average∑PAEs content reduces in turn, increases along with the depth assumes the declining trend. Compares in the Guizhou Province soil with the domestic other place soil survey result these six kinds of PAEs compound content to be relatively low.4.According to American soil PAEs compound control standard, in Guizhou Province soil only then DEP, DBP compound exceeding the allowed figure, the DBP exceeding the allowed figure rate most serious (exceeding the allowed figure rate is 71.9%), next is DEP (exceeding the allowed figure rate is 7.7%), although BBP, DEHP are picked out in the major part sample, but has not exceeded the allowed figure.5.To the atmosphere, the plant and the plastic outside wrapping test result indicated that the PAEs compound has varying degree detection. Is similar with the domestic and foreign literature report, also has in these materials to the PAEs compound has not limited the quantity the standard, cannot make the objective pollution appraisal.6.Macro analysis PAEs is different in the different environment's distribution and the content level, widely exists in the Guizhou Province each kind of ambient medium, DBP and DEHP are especially common, moreover their content accounts for the proportion to be biggest. This has reflected in the plasticizer the phthalic acid dibutyl ester, the phthalic acid two (2- ethyl hexyl) the ester present in Guizhou Province's service condition.
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