評(píng)價(jià)區(qū)土壤及底泥環(huán)境質(zhì)量現(xiàn)狀評(píng)價(jià)

1、評(píng)價(jià)區(qū)土壤及底泥環(huán)境質(zhì)量現(xiàn)狀評(píng)價(jià)（1）樣品的采集及分析測(cè)試2013年12月，本溪市環(huán)境監(jiān)測(cè)中心站對(duì)思山嶺鐵礦采選工程土壤及底泥環(huán)境質(zhì)量進(jìn)行了現(xiàn)狀監(jiān)測(cè)。本項(xiàng)目區(qū)域內(nèi)土壤及底泥監(jiān)測(cè)點(diǎn)位、監(jiān)測(cè)因子以及監(jiān)測(cè)方法見(jiàn)表9.1-10和表9.1-11；見(jiàn)監(jiān)測(cè)布點(diǎn)圖9.1-10。表9.1-10 土壤、底泥監(jiān)測(cè)點(diǎn)位及監(jiān)測(cè)因子編號(hào)樣品位置土壤、底泥監(jiān)測(cè)項(xiàng)目1#廢石場(chǎng)最高標(biāo)高上游50m土壤鎘、總汞、總砷、銅、鉛、總鉻、鋅、鎳、鐵、錳、pH2#廢石場(chǎng)后塔溝上游100m土壤、底泥3#廢石場(chǎng)后塔溝下游50m土壤、底泥4#廢石場(chǎng)后塔溝下游100m土壤、底泥5#工業(yè)場(chǎng)地外東側(cè)50m土壤6#工業(yè)場(chǎng)地外南側(cè)50m土壤、底泥7#工業(yè)

2、場(chǎng)地外西南側(cè)50m土壤、底泥8#尾礦庫(kù)最高標(biāo)高上游100m土壤9#尾礦庫(kù)截滲壩下游50m土壤、底泥10尾礦庫(kù)截滲壩下游100m（楊木溝西南支溝與東南支溝交匯處）土壤、底泥表9.1-11 土壤監(jiān)測(cè)因子監(jiān)測(cè)方法表序號(hào)項(xiàng)目分析測(cè)定方法方法來(lái)源1鎘原子吸收分光光度法GB/T 17141-19972汞原子熒光光譜法GB/T 17141-19973砷原子熒光法GB/T 17140-19974鉛原子吸收分光光度法GB/T 17140-19975鉻原子吸收分光光度法GB/T 17137-19976鐵原子吸收分光光度法GB/T 17141-19977錳原子吸收分光光度法GB/T 17141-19978銅原子吸收

3、分光光度法GB/T 17138-19979鋅原子吸收分光光度法GB/T 17138-199710鎳原子吸收分光光度法GB/T 17139-1997（2）樣品的監(jiān)測(cè)結(jié)果土壤樣品監(jiān)測(cè)結(jié)果見(jiàn)表9.1-12。4 / 4文檔可自由編輯打印表9.1-12 土壤樣品監(jiān)測(cè)結(jié)果統(tǒng)計(jì)表監(jiān)測(cè)點(diǎn)位監(jiān)測(cè)因子（mg/kg）pH值（無(wú)量綱）鎘汞砷鉛鉻鐵錳銅鋅鎳1#7.150.0290.0353.65426.5715.691369.58856.4526.9566.3932.562#7.680.0250.0453.62329.0218.021406.39924.6521.5599.5930.653#7.220.0310.042

4、3.01932.1115.691235.41836.5122.2868.5925.624#7.050.0310.0373.51230.2616.981442.02936.2521.9865.3227.535#7.360.0220.0363.66527.6918.291586.96879.6224.6569.8736.986#7.030.0370.0423.34625.1118.591435.11954.6623.0966.9627.627#7.020.0280.0454.15830.2515.361234.56836.2226.1863.5230.178#7.580.0180.0333.987

5、28.6919.251596.32991.2328.4566.2134.259#7.150.0260.0443.99630.2617.241529.68825.6726.3262.3131.0310#6.980.0280.0413.15228.5517.691253.12925.1723.564.2828.65土壤樣品監(jiān)測(cè)結(jié)果見(jiàn)表9.1-13。表9.1-13 底泥樣品監(jiān)測(cè)結(jié)果統(tǒng)計(jì)表監(jiān)測(cè)點(diǎn)位監(jiān)測(cè)因子（mg/kg）ph（無(wú)量綱）鎘汞砷鉛鉻鐵錳銅鋅鎳2#8.380.0370.0513.83529.2418.931497.16938.9523.6974.5932.693#7.420.0410.0493

6、.26932.1319.121247.64873.3526.5876.8929.654#7.450.040.0573.90833.9718.71454.07993.1222.9870.1928.556#7.180.0420.0493.88126.1120.781473.14968.6525.6965.9829.617#7.190.0330.054.24633.3921.621270.09848.3629.6879.6932.159#7.440.0350.0474.00733.0418.831529.74827.6727.3688.6534.0510#7.20.0370.064.25434.26

7、22.521563.41956.126.5576.5235.69（3）評(píng)價(jià)方法本次評(píng)價(jià)土壤環(huán)境質(zhì)量現(xiàn)狀評(píng)價(jià)采用單因子污染指數(shù)法。單因子污染指數(shù)為土壤中重金屬的含量與土壤環(huán)境質(zhì)量標(biāo)準(zhǔn)的比值，其表達(dá)式為：Pi=Ci/Si式中：Pi土壤環(huán)境質(zhì)量指數(shù)；Ci土壤環(huán)境質(zhì)量的實(shí)測(cè)值，mg/kg；Si土壤環(huán)境質(zhì)量評(píng)價(jià)標(biāo)準(zhǔn)，mg/kg。Pi1表示受污染物i的影未超標(biāo)；Pi1表示污染物i的污染超標(biāo)，Pi越大，受污染程度越重。本次評(píng)價(jià)以土壤環(huán)境質(zhì)量標(biāo)準(zhǔn)（GB15618-1995）中的類土壤為標(biāo)準(zhǔn)，即主要適用于一般農(nóng)田、蔬菜地、茶園、果園、牧場(chǎng)等土壤。（4）評(píng)價(jià)結(jié)果評(píng)價(jià)標(biāo)準(zhǔn)采用土壤環(huán)境質(zhì)量標(biāo)準(zhǔn)（GB15618-199

8、5）中的二級(jí)標(biāo)準(zhǔn)。標(biāo)準(zhǔn)值見(jiàn)表9.1-14，單因子評(píng)價(jià)指數(shù)結(jié)果見(jiàn)表9.1-15及表9.1-16。表9.1-14 各監(jiān)測(cè)因子評(píng)價(jià)標(biāo)準(zhǔn) 單位：mg/kg評(píng)價(jià)因子pH鎘汞砷鉛鉻銅鋅鎳評(píng)價(jià)標(biāo)準(zhǔn)6.57.50.300.5030300200100250507.50.601.02535025010030060表9.1-15 評(píng)價(jià)區(qū)土壤樣品單因子指數(shù)評(píng)價(jià)結(jié)果統(tǒng)計(jì)表監(jiān)測(cè)因子編號(hào)及樣品位置鎘汞砷鉛鉻銅鋅鎳1#廢石場(chǎng)最高標(biāo)高上游50m0.0970.070.1220.0890.0780.2700.2660.6512#廢石場(chǎng)后塔溝上游100m0.0420.450.1450.0830.0720.2150.3320.6133

9、#廢石場(chǎng)后塔溝下游50m0.1030.0840.1010.1070.0780.2230.2740.5124#廢石場(chǎng)后塔溝下游100m0.1030.0740.1170.1010.0850.220.2610.5515#工業(yè)場(chǎng)地外東側(cè)50m0.0730.0720.1220.0920.0910.2470.2790.7406#工業(yè)場(chǎng)地外南側(cè)50m0.1230.0840.1120.0840.0930.2310.2680.5527#工業(yè)場(chǎng)地外西南側(cè)50m0.0930.090.1390.1010.0770.2620.2540.6038#尾礦庫(kù)最高標(biāo)高上游100m0.030.330.1590.0960.0770

10、.2850.2210.5719#尾礦庫(kù)截滲壩下游50m0.0870.0880.1330.0820.0860.2630.2080.62110尾礦庫(kù)截滲壩下游100m（楊木溝西南支溝與東南支溝交匯處）0.0930.0820.1050.0950.0880.2350.2570.573表9.1-16 評(píng)價(jià)區(qū)底泥樣品單因子指數(shù)評(píng)價(jià)結(jié)果統(tǒng)計(jì)表 監(jiān)測(cè)因子編號(hào)及樣品位置鎘汞砷鉛鉻銅鋅鎳2#廢石場(chǎng)后塔溝上游100m0.0620.0510.1530.084 0.076 0.237 0.249 0.545 3#廢石場(chǎng)后塔溝下游50m0.1370.0980.1090.107 0.096 0.266 0.308 0.59

11、3 4#廢石場(chǎng)后塔溝下游100m0.1330.1140.1300.113 0.094 0.230 0.281 0.571 6#工業(yè)場(chǎng)地外南側(cè)50m0.140.0980.1290.087 0.104 0.257 0.264 0.592 7#工業(yè)場(chǎng)地外西南側(cè)50m0.110.10.1420.111 0.108 0.297 0.319 0.643 9#尾礦庫(kù)截滲壩下游50m0.1170.0940.1340.110 0.094 0.274 0.355 0.681 10尾礦庫(kù)截滲壩下游100m（楊木溝西南支溝與東南支溝交匯處）0.1230.120.1420.114 0.113 0.266 0.306 0.