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1 Chinese Journal of App lied Ecology, Sep. 2007, 18 ( 9) : (, ).,,,.,,,,,., (2007) X171. 5, X826 A Applica tion of inverse d istance we ighted in terpola tion m ethod in con tam ina ted site a ssess2 m en t. YANG W en2rui, WANG Ru2song, HUANG J in2lou, CHEN Zhan, L I Feng (S tate Key L a2 bora tory of U rban and R eg ional Ecology, R esea rch Cen ter for Eco2Environm ental Sciences, Ch inese Academ y of Sciences, B eijing , Ch ina). 2Chin. J. A ppl. Ecol., 2007, 18 (9) : Abstract: There are m any difficulties in ascertaining the area that needs to be remedied in contam i2 nated site. This paper integrated the experts judgments with grids as the samp ling strategy in an a2 bandoned pesticide p lant in northern China, and app lied a geostatistical method, inverse distance weighted interpolation ( IDW ), to simulate the pollutants2 and risk spatial distribution. B ased on soil environmental benchmark, two scenarios were designed for ascertaining the polluted area. The results showed that the area needed to be remedied and determ ined by IDW was somewhat larger, according to the national environm ental 2nd standard for agricultural soils, but the area and cost needed for remedy were sm aller and more econom ic and reasonable, based on the health risk thresh2 old level and IDW method. A com bination of IDW and health risk assessm ent in ascertaining pollu2 ted area would be a new way for site assessment and soil remediation in the future. Key words: site assessment; Nemerow pollution index (NP I) ; risk assessment; inverse distance weighted interpolation; soil rem ediation. 1,.,. 50,,,,, ( POPs), 3 ( ) E2mail: wangrs@ rcees. ac. cn , [ 2 ]. [ ].,,.,,.,,,,,,,

2 ,,.,,,,.,, , 4 m 2,,, 2080,, 2005,,. ph ,,. 212,,,.,12 m 12 m,,. SH30,1,, cm,,, cm.. 213,, (HCH) (DDT).,,, [ 8 ]. GB /T , HCH DDT. ExcelA rc2 GIS ( GB ), [ 9 ]. P = C i S i 2 + C i S i 2 : P i, P 1, P > 1, P, ; C i i (mg kg - 1 ) ; S i i (mg kg - 1 ), HCH 0105 mg kg - 1, DDT 0105 mg kg EPA,,. [ 4 ] : ADD = C IR ED 10-6 / (BW A T) : ADD (mg kg - 1 d - 1 ) ; C (mg kg - 1 ) ; IR (mg d - 1 ) ; ED ( d) ; BW ( kg) ; 10-6 ; A T( d).. [ 3 ] : R =ADD Q : R ( a - 1 ) ; ADD (mg kg - 1 d - 1 ) ( 70 ) ; Q ( kg d mg - 1 ),EPA, HCH 118 kg d - 1 mg - 1 ; DDT 0143 kg d - 1 mg - 1 ( (HJ /T ): HCH 113 kg d mg - 1 ; DDT 0143 kg d mg - 1 )., ( 1). 1 Tab. 1 Da ily in take param eter of so il for d ifferen t people groups Age Daily intake (mg d - 1 ) Yearly exposure time (d a - 1 ) Average body mass (kg) O rdinary climate Children Teenagers Adults Elders Dusty climate A ll types , The co2 efficients were referred to Guides to Field s Environmental A ssessment and modi2 fied for the dust weather in North China.

9 : 2015 1 F ig. 1 Spatial distribution of NP I in different soil dep ths.

3 9 : F ig. 1 Spatial distribution of NP I in different soil dep ths. A: 20 cm; B: 80 cm; C: 180 cm; D: 380 cm; E: 500 cm. The same below.,, 10-6 a - 1 [ 10 ].., a [ 5, 7 ],,, ; [ 16 ].

4 DDT F ig. 2 Spatial distribution of the children s health risk by HCH and DDT in different soil dep ths ( 10-6 ).

9 : 2017,, [ 10 ]. A rcgis 910 IDW,. 3 311, ( 1). 1,. 0 180 cm, 380 cm,. ( GB 15618 1995),., 0 180 cm, 180 500 cm, 167 200 m 3. 312,( 2)., 4,,.,,,. A rcgis, ( 3), 130 400 m 3.

5 9 : 2017,, [ 10 ]. A rcgis 910 IDW, , ( 1). 1, cm, 380 cm,. ( GB ),., cm, cm, m ,( 2)., 4,,.,,,. A rcgis, ( 3), m , ( GB ),,, ( 015 mg kg - 1 ),.,,, ( HCH 2119 mg kg - 1 ; DDT 814 mg kg - 1 ). ( HJ /T ) HCH 51 mg kg - 1, DDT 195 mg kg - 1 ),,. [ 6 ],. 3 F ig. 3 A rea needed for remedy based on children health risk assessment. 1 7: Samp ling sites. 1) cm; 2) cm, cm; 3) cm; 4) cm, cm; 5) cm; 6) cm; 7) cm. 4,,,,,., [ ],.., : 1), [ 1 ].,,,,.

6 ,,,. 2) [ 17 ]..,, ( ),,,. 3).,,,,. [ 1 ] Chang KT Trans. Chen J2F ( ) Introduction to Geographic Information System s. Bei2 jing: Science Press: ( in Chinese) [ 2 ] Chen H2H ( ), Chen H2W ( ), He J2T ( ), et al Health2based risk assessment of contam inated sites: Princip les and methods. Earth Science Frontiers ( ), 13 ( 1 ) : ( in Chinese) [ 3 ] Chen YC, Ma HW Model comparison for risk assessment: A case study of contam inated groundwater. Chem osphere, 63: [ 4 ] EPA Guidelines for Exposure A ssessment. W ash2 ington, DC. Federal Register, 57 ( 104) : [ 5 ] Guo X2D ( ), FU B2J ( ), Ma K2M ( ), et al Spatial variability of soil nutrients based on geostatistics combined with GIS A case study in Zunhua City of Hebei Province. Chinese Journal of A pplied Ecology ( ), 11 ( 4) : ( in Chinese) [ 6 ] J iang L ( ), W ang Y ( ) Guides to Field s Environmental A ssessment. Beijing: China Environmental Science Press: ( in Chinese) [ 7 ] J iang Y ( ), Zhang Y2G ( ), L iang W 2J ( ), et al Spatial variability of soil nutri2 ents in cultivated surface soil of Sujiatun D istrict, Shen2 yang City. Chinese Journal of A pplied Ecology ( ), 14 (10) : ( in Chinese) [ 8 ] Lu R2K ( ) Analytical Method of Soil Ag2 ro2chem istry. Beijing: Chinese Agricultural Science and Technology Press. ( in Chinese) [ 9 ] Lu Y2S ( ) Environmental A ssessment. Shanghai: Tongji University Press: ( in Chi2 nese) [ 10 ] Qu C2X ( ), J iang Y ( ),W u Y2P ( ), et al Study on the development of a choro2 p leth atlas on cancer mortality using the inverse distance weight interpolation in the 1990 s. China Journal of Ep2 idem iology (), 27 ( 3) : ( in Chinese) [ 11 ] W cisgo E, Ioven D, Kucharski R, et al Human health risk assessment case study: An abandoned mental smelter site in Poland. Chem osphere, 47: [ 12 ] W u S2T ( ),W u X2F ( ), Hu Y2L ( ), et al Studies on soil pollution around Pb2 Zn smelting factory and heavy metals hyperaccumula2 tors. Ecology and Environm ent ( ), 13 ( 2) : ( in Chinese) [ 13 ] Zhao Q2N ( ), Xu Q2X ( ), Yang K ( ) App lication of potential ecological risk in2 dex in soil pollution of typ ical pollution industries. Jour2 nal of East China N orm al U niversity (Nature Science) ( ), (1) : ( in Chinese) [ 14 ] Zheng H2L ( ), Chen J ( ), Deng W 2J ( ), et al Spatial analysis and pollution assessment of soil heavy metals in the steel industry are2 as of Nanjing peri2urban zone. A cta Pedologica S inica ( ), 43 (1) : ( in Chinese) [ 15 ] Zheng Y ( ), W ang X2J ( ), L iu R2M ( ), et al Kriging analysis and pollution assessment for the polysyclic aromatic hydrocarbons ( PAH s) in the soil of Tianjin. China Environm ental Science ( ), 23 (2) : ( in Chi2 nese) [ 16 ] Zhu H2Y ( ), L iu S2L ( ), J ia S2F ( ) Problem s of the spatial interpolation of physical geographical elements. Geographical R esearch ( ), 23 (4) : ( in Chinese) [ 17 ] Zhu Q2A ( ), Zhang W 2C ( ), Yu J2H ( ) The spatial interpolation in GIS. Journal of J iangxi N orm al U niversity (Natural Science) ( ), 28 (2) : ( in Chinese),, 1979,., 4. E2mail: oydrag2 on@126. com

1 GIS 95 Y = F y + (1 F) (1) 0 0 Y0 kg/hm 2 /day F y 0 y c kg/hm 2 /day [12] y m 20 kg/hm 2 /hour Y = cl cn ch G [ F( y ) T m yo + (2) (1 F)(

1 GIS 95 Y = F y + (1 F) (1) 0 0 Y0 kg/hm 2 /day F y 0 y c kg/hm 2 /day [12] y m 20 kg/hm 2 /hour Y = cl cn ch G [ F( y ) T m yo + (2) (1 F)( 24 1 Vol.24 No.1 94 2008 1 Transactions of the CSAE Jan. 2008 2008 1 100094 2 100035 3 100081 4 100081 5 100101 GIS ( ) 65.12 16.82 13.74 15.27 11.07 t/(hm 2 a) 10.93% 41.43% 46.93% 65.4%. Bi Jiye, Zhu