中国环境监测
中國環境鑑測
중국배경감측
ENVIRONMENTAL MONITORING IN CHINA
2014年
1期
13-19
,共7页
王英英%钱蜀%万旭%杨坪
王英英%錢蜀%萬旭%楊坪
왕영영%전촉%만욱%양평
攀西%安宁河流域%重金属%风险
攀西%安寧河流域%重金屬%風險
반서%안저하류역%중금속%풍험
The southwest of Sichuan province%The basin of Anning River%heavy metal%risk
通过对攀西区域安宁河流域的7个断面底泥以及该区域17家典型涉重金属工业周边土壤进行环境质量状况调查和生态风险评价,结果显示,底泥中6种重金属砷、铬、铅、镉、汞和钒含量在凉山州境内特别是冕宁县断面含量最高,污染最重,攀枝花境内米易县部分含量较低;底泥中铅、镉和砷等出现了中重度污染,且钒和铬含量、砷和镉含量之间分别呈极显著和显著相关,同源性特征明显,土壤中镉超标范围最广,超标程度最重且呈面状重度风险,钒和汞超标范围较大,汞出现较重风险,其余为低度风险。
通過對攀西區域安寧河流域的7箇斷麵底泥以及該區域17傢典型涉重金屬工業週邊土壤進行環境質量狀況調查和生態風險評價,結果顯示,底泥中6種重金屬砷、鉻、鉛、鎘、汞和釩含量在涼山州境內特彆是冕寧縣斷麵含量最高,汙染最重,攀枝花境內米易縣部分含量較低;底泥中鉛、鎘和砷等齣現瞭中重度汙染,且釩和鉻含量、砷和鎘含量之間分彆呈極顯著和顯著相關,同源性特徵明顯,土壤中鎘超標範圍最廣,超標程度最重且呈麵狀重度風險,釩和汞超標範圍較大,汞齣現較重風險,其餘為低度風險。
통과대반서구역안저하류역적7개단면저니이급해구역17가전형섭중금속공업주변토양진행배경질량상황조사화생태풍험평개,결과현시,저니중6충중금속신、락、연、력、홍화범함량재량산주경내특별시면저현단면함량최고,오염최중,반지화경내미역현부분함량교저;저니중연、력화신등출현료중중도오염,차범화락함량、신화력함량지간분별정겁현저화현저상관,동원성특정명현,토양중력초표범위최엄,초표정도최중차정면상중도풍험,범화홍초표범위교대,홍출현교중풍험,기여위저도풍험。
Through the survey and the potential risk evaluation on the environmental quality of the sediment of the seven sections in Anning River basin and the soil around the seventeen enterprises belonging to non-ferrous metal ore mining and smelting and pressing of nonferrous metals in the southwest of Sichuan province, what can be concluded as follows: the concentration of six metal elements such as As,Cr,Pb,Cd,Hg and V in the sediment is highest in the state of Liangshan, especially in the section in the county named Mianning, what’ s more, the sediment pollution of which is the most seriously and the pollution level in sediment of Pb,Cd and As reach moderate and severe degree, the reason of above maybe the amassing of core resources such as rare-earth core in county of Mianning and the influence of the enterprise of smelting mineral in the upstream. The concentration of V and Cr,As and Cd respectively takes on most significant and significant correlation, according to that, what can be inferred is that the elements have the same source in view of the associated minerals. The environmental quality of the soil around different industries and enterprises diverges greatly. The soil range and degree of exceeding the standard of Cd are most wide and severe, and the display of the soil pots occurring potential ecological risk is patchy, the soil range of exceeding the standard of V and Hg is relatively wide, Hg in soil occurs more severe potential ecological risk and the risk degree of other elements in soil is low, because different enterprises use different raw material and different production technology.