深圳大学学报(理工版)
深圳大學學報(理工版)
심수대학학보(리공판)
JOURNAL OF SHENZHEN UNIVERSITY (SCIENCE & ENGINEERING)
2014年
3期
273-278
,共6页
童永彭%郝昕%孙慧斌%冯晋兴%刘晓红%陈建敏
童永彭%郝昕%孫慧斌%馮晉興%劉曉紅%陳建敏
동영팽%학흔%손혜빈%풍진흥%류효홍%진건민
环境毒理学%X射线荧光光谱分析%电感耦合等离子体质谱分析%婴儿毛发%脐血%铅%海洋重金属污染%滨海城市
環境毒理學%X射線熒光光譜分析%電感耦閤等離子體質譜分析%嬰兒毛髮%臍血%鉛%海洋重金屬汙染%濱海城市
배경독이학%X사선형광광보분석%전감우합등리자체질보분석%영인모발%제혈%연%해양중금속오염%빈해성시
environmental toxicology%X-ray fluorescence ( XRF) analysis%inductively coupled plasma mass spec-trometry ( ICP-MS) analysis%fetal hair%umbilical cord blood%lead%heavy metal pollution in marine%coastal city
用电感耦合等离子体质谱( inductively coupled plasma mass spectrometry, ICP-MS)测量某海滨城市50例胎儿脐血中铅( Pb)质量浓度,发现Pb超标(>100μg/L)为8%.根据婴儿母体是否常食用海产品,将50例样品分为常食用海产品(A组)、偶尔食用海产品(B组)和极少食用海产品(C组),用X射线荧光光谱分析( X-ray fluorescence, XRF)测量这3组婴儿毛发中的Pb质量分数,发现婴儿毛发中Pb质量分数具有显著性差异,由高至低依次为A组>B组>C组,其相应的脐血Pb质量分数也具有相同特征.同时对婴儿中的溴( Br)质量分数也进行了测量,发现Pb质量分数高的婴儿,其Br质量分数也显著偏高,由于海产品中Br质量分数远高于淡水产品,从另一方面说明,常食用海产品组的婴儿Pb质量分数偏高与母亲食用海产品有关.此外,对同一海滨城市393例儿童(2~11岁)血液中Pb质量分数进行统计学分析,得出Pb超标(>100μg/L)为8.9%,说明海滨城市Pb污染仍对儿童具有一定的威胁.最后,通过对环境中常见的铅源( PM2.5、大气、油漆和海产品等)及人体摄入状况进行分析比较,认为食用铅污染的海产品是造成海滨城市胎儿铅超标的主要原因之一.
用電感耦閤等離子體質譜( inductively coupled plasma mass spectrometry, ICP-MS)測量某海濱城市50例胎兒臍血中鉛( Pb)質量濃度,髮現Pb超標(>100μg/L)為8%.根據嬰兒母體是否常食用海產品,將50例樣品分為常食用海產品(A組)、偶爾食用海產品(B組)和極少食用海產品(C組),用X射線熒光光譜分析( X-ray fluorescence, XRF)測量這3組嬰兒毛髮中的Pb質量分數,髮現嬰兒毛髮中Pb質量分數具有顯著性差異,由高至低依次為A組>B組>C組,其相應的臍血Pb質量分數也具有相同特徵.同時對嬰兒中的溴( Br)質量分數也進行瞭測量,髮現Pb質量分數高的嬰兒,其Br質量分數也顯著偏高,由于海產品中Br質量分數遠高于淡水產品,從另一方麵說明,常食用海產品組的嬰兒Pb質量分數偏高與母親食用海產品有關.此外,對同一海濱城市393例兒童(2~11歲)血液中Pb質量分數進行統計學分析,得齣Pb超標(>100μg/L)為8.9%,說明海濱城市Pb汙染仍對兒童具有一定的威脅.最後,通過對環境中常見的鉛源( PM2.5、大氣、油漆和海產品等)及人體攝入狀況進行分析比較,認為食用鉛汙染的海產品是造成海濱城市胎兒鉛超標的主要原因之一.
용전감우합등리자체질보( inductively coupled plasma mass spectrometry, ICP-MS)측량모해빈성시50례태인제혈중연( Pb)질량농도,발현Pb초표(>100μg/L)위8%.근거영인모체시부상식용해산품,장50례양품분위상식용해산품(A조)、우이식용해산품(B조)화겁소식용해산품(C조),용X사선형광광보분석( X-ray fluorescence, XRF)측량저3조영인모발중적Pb질량분수,발현영인모발중Pb질량분수구유현저성차이,유고지저의차위A조>B조>C조,기상응적제혈Pb질량분수야구유상동특정.동시대영인중적추( Br)질량분수야진행료측량,발현Pb질량분수고적영인,기Br질량분수야현저편고,유우해산품중Br질량분수원고우담수산품,종령일방면설명,상식용해산품조적영인Pb질량분수편고여모친식용해산품유관.차외,대동일해빈성시393례인동(2~11세)혈액중Pb질량분수진행통계학분석,득출Pb초표(>100μg/L)위8.9%,설명해빈성시Pb오염잉대인동구유일정적위협.최후,통과대배경중상견적연원( PM2.5、대기、유칠화해산품등)급인체섭입상황진행분석비교,인위식용연오염적해산품시조성해빈성시태인연초표적주요원인지일.
The concentration of 50 cases of coastal city fetal umbilical cord blood lead ( Pb) level was analyzed by inductively coupled plasma mass spectrometry ( ICP-MS) . The results showed that about 8% of them exceeded the current blood lead standard ( > 100μg/L) . Meanwhile, the 50 cases were divided into three groups as such:regu-lar consumption of seafood ( group A ) , occasional consumption of seafood ( group B) , and rare consumption of sea-food ( group C) for analysis, respectively. The mass fraction of lead from fetal hair was analyzed by synchrotron ra-diation micro-XRF analysis. The results showed that lead content was significantly different in the groups and the trend of baby hair Pb content was as A> B> C group. The corresponding cord blood Pb levels also have the same trend. Bromine ( Br) content was also measured and the result showed that the group with high level of Pb also had a high level of Br. As Br content is much higher in seafood than in freshwater products, the high Pb content with high Br content may be associated with the consumption of seafood. At the same time, blood Pb levels of 393 cases of children ( from 2 to 11 years old ) in the same coastal city were statistically analyzed, and the result showed that 8. 9% of them exceeded the current blood lead standard ( > 100 μg/L) . The above tests indicate that Pb pollution still threaten the health of children. Finally, through the comparison of common main sources of lead in the environ-ment ( PM2. 5 , air, paint, seafood, etc. ) as well as in combination with human intake conditions, it is concluded that lead-contaminated seafood consumption is the main reason of coastal city of fetal lead excess.