长江三角洲地区土壤环境质量与修复研究__典_省(3)

236　　土　　壤　　学　　报

表2　供试土壤中PAHs的含量

Table2　ConcentrationsofPAHsintestedsoils(μgkg-1)

45

卷

样本号

SampleNo.AZ201AZ202AZ203AZ204AZ205AZ206AZ207AZ208AZ209LQS2038LQS2041LQS2042LQS2054LQS2076LQS2162LQS2177LQS2210LQS2267

萘

Na

苊

Ace

芴

Flu

菲

Phe

蒽

An

荧蒽

FluA

芘

Pyr

苯并

[a]蒽BaA789354171872175612636714347915164714

屈

Chry

苯并[b]苯并[k]荧蒽

BbF1172596282141333107205575241102026296326

苯并

[a]芘Bap565440170842746812342471861120194616

二苯并

[a,h]蒽DBA8849271330101955112122262

苯并

[g,h,i] BghiP926468250123297886102971520235520

茚并

[1,2,32cd]

荧蒽

BkF469240117591394381243447910258

总量

Total

芘IP

739370202762457013635215058271217184414

NDNDNDNDNDNDNDNDND5NDND21432ND2

663ND7NDND204NDNDNDNDND31417

201952626963423101121511617

4864121851112671269647126525233640535943115

162510525341881112565

192313861155961468285598225354

336232456169274

9154842191162518516446320971271619315325

950055792492133831651059175454412435

1096827513223436545510057

36725494632606010668

　128　172　229　161　243　318　411　604　406

　　注:ND指低于检出限Note:NDindicatesbelowdetectionlim

it

图1　不同环数占PAHs总量的百分比

Fig11　PercentagesofdifferentringnumberstototalPAHs

的平均值只有31μgkg-1[8]。与文献中的研究结果相比,无锡地区农业土壤中PAHs的污染较重,与天

津污灌区农用土壤相近,而台州地区农业土壤中PAHs含量较低,污染较轻。另外,本研究结果和文