四川环境
四川環境
사천배경
2012年
6期
22-27
,共6页
云锟%吴德超%翁建兵%朱佳文
雲錕%吳德超%翁建兵%硃佳文
운곤%오덕초%옹건병%주가문
湘潭锰矿%蔬菜%菜园土%重金属%污染指数
湘潭錳礦%蔬菜%菜園土%重金屬%汙染指數
상담맹광%소채%채완토%중금속%오염지수
Xiangtan manganese mine%vegetable%fanning soil%heavy metal%pollution index
本文对湘潭锰矿红旗分矿开采区和沙圹村恢复区的部分蔬菜（莴笋叶、小白菜、香葱、空心菜）及菜园土中Mn、Pb、Zn3种重金属含量进行了测定分析。结果表明：根据国家卫生标准和中国食物成分表，从单因子污染指数看，所有蔬菜Zn（Pi〈1）没有超标，除了开采区的香葱受Pb（Pi=1．95）轻度污染和恢复区的小白菜受Mn（Pi=2．54）中度污染外，其他都受重污染；用综合污染指数法评价，所有蔬菜都处于5级污染以上属重污染。开采区菜园土中Mn、Pb、Zn平均含量分别为：40839．5mg／kg、1993．5mg／kg、556．5mg／kg；恢复区菜园土Mn、Pb平均含量则是2893．75mg／kg、2213．5mg／kg。用国家土壤环境标准的二级标准（Pb、Zn）和湖南省背景值（Mn）作为参照值，从单因子污染指数看，除开采区菜园土受Zn（Pi=2．26）中度污染外，污染指数均大于3，属重污染，两区菜园土综合污染指数都大于3，所以都处于5级污染以上属重污染，相比之下开采区的要更加严重。
本文對湘潭錳礦紅旂分礦開採區和沙壙村恢複區的部分蔬菜（萵筍葉、小白菜、香蔥、空心菜）及菜園土中Mn、Pb、Zn3種重金屬含量進行瞭測定分析。結果錶明：根據國傢衛生標準和中國食物成分錶，從單因子汙染指數看，所有蔬菜Zn（Pi〈1）沒有超標，除瞭開採區的香蔥受Pb（Pi=1．95）輕度汙染和恢複區的小白菜受Mn（Pi=2．54）中度汙染外，其他都受重汙染；用綜閤汙染指數法評價，所有蔬菜都處于5級汙染以上屬重汙染。開採區菜園土中Mn、Pb、Zn平均含量分彆為：40839．5mg／kg、1993．5mg／kg、556．5mg／kg；恢複區菜園土Mn、Pb平均含量則是2893．75mg／kg、2213．5mg／kg。用國傢土壤環境標準的二級標準（Pb、Zn）和湖南省揹景值（Mn）作為參照值，從單因子汙染指數看，除開採區菜園土受Zn（Pi=2．26）中度汙染外，汙染指數均大于3，屬重汙染，兩區菜園土綜閤汙染指數都大于3，所以都處于5級汙染以上屬重汙染，相比之下開採區的要更加嚴重。
본문대상담맹광홍기분광개채구화사광촌회복구적부분소채（와순협、소백채、향총、공심채）급채완토중Mn、Pb、Zn3충중금속함량진행료측정분석。결과표명：근거국가위생표준화중국식물성분표，종단인자오염지수간，소유소채Zn（Pi〈1）몰유초표，제료개채구적향총수Pb（Pi=1．95）경도오염화회복구적소백채수Mn（Pi=2．54）중도오염외，기타도수중오염；용종합오염지수법평개，소유소채도처우5급오염이상속중오염。개채구채완토중Mn、Pb、Zn평균함량분별위：40839．5mg／kg、1993．5mg／kg、556．5mg／kg；회복구채완토Mn、Pb평균함량칙시2893．75mg／kg、2213．5mg／kg。용국가토양배경표준적이급표준（Pb、Zn）화호남성배경치（Mn）작위삼조치，종단인자오염지수간，제개채구채완토수Zn（Pi=2．26）중도오염외，오염지수균대우3，속중오염，량구채완토종합오염지수도대우3，소이도처우5급오염이상속중오염，상비지하개채구적요경가엄중。
The contents of heavy metals including Mn, Pb and Zn in vegetables such as lettuce leaves, pakchoi, chive and water spinach as well as in the soils of vegetable farms of a manganese mine area were determined. The results showed that as to the single metal pollution, according to the national health standards and Chinese Food Composition Table, the Zn content ( P~ 〈 1 ) does not exceed the standard for all vegetables; Besides, all vegetables were heavily polluted by other metals excepting that the chive was polluted lightly by Pb (Pi = 1.95) and the pakchoi was polluted with medium level by Mn ( Pi = 2.54). As to the multi-metal pollutions, all the vegetables were polluted with Level 5 or more, belonging to heavy pollution. The average contents of Mn, Pb and Zn in soils of the vegetable farms in mining area are 40839.5, 1993.5 and 556.5 mg/kg respectively, meanwhile the average contents of Mn and Pb in soils of restored area were 2893.75 and 2213.5 mg/kg respectively. According to the Level 2 standard of the State Soil Environmental Standards (Pb and Zn) and the background data (Mn) in Hunan Province, as to the single metal pollution, all the pollution indexes except for Zn ( Pi = 2.26) in vegetable farms of mining area being medium level, were higher than 3, belong to heavily pollution. All the multi-metal p ollution indexes for two areas were higher than 3, being heavily polluted with more than Level Five, especially for the mining area the pollution was more serious.
