现代地质
現代地質
현대지질
GEOSCIENCE-JOURNAL OF GRADUATE SCHOOL CHINA UNIVERSITY OF GEOSCIENCES
2015年
2期
324-330
,共7页
多环芳烃%岩溶地下河%多种介质%浓度%组成%分布特征
多環芳烴%巖溶地下河%多種介質%濃度%組成%分佈特徵
다배방경%암용지하하%다충개질%농도%조성%분포특정
polycyclic aromatic hydrocarbons%karst underground river%multimedia%concentration%composi-tion%distribution characteristics
为了研究岩溶地下河系统内多种介质中多环芳烃（PAHs）的浓度、组成和分布特征，以广西某典型岩溶地下河为例，利用2013—2014年同期的空气、地下河水、沉积物和土壤样品测试数据，对不同环境介质中16种多环芳烃（PAHs）的浓度、组成和分布特征进行对比分析。结果表明，空气和地下河水以2～3环PAHs为主，其中空气的2～3环PAHs比例为71.66％，地下河水的2～3环PAHs比例为54.84％；沉积物和土壤以4～6环PAHs为主，其中沉积物的4～6环PAHs比例为54.26％，土壤的4～6环PAHs比例为65.06％；环境介质中PAHs的浓度变化为：上游＜中游＜下游，这与污染源排放、吸附作用等相关；同一区域不同介质的2～3环PAHs百分比为：地下河水＞沉积物＞土壤，而4～6环PAHs百分比则相反。
為瞭研究巖溶地下河繫統內多種介質中多環芳烴（PAHs）的濃度、組成和分佈特徵，以廣西某典型巖溶地下河為例，利用2013—2014年同期的空氣、地下河水、沉積物和土壤樣品測試數據，對不同環境介質中16種多環芳烴（PAHs）的濃度、組成和分佈特徵進行對比分析。結果錶明，空氣和地下河水以2～3環PAHs為主，其中空氣的2～3環PAHs比例為71.66％，地下河水的2～3環PAHs比例為54.84％；沉積物和土壤以4～6環PAHs為主，其中沉積物的4～6環PAHs比例為54.26％，土壤的4～6環PAHs比例為65.06％；環境介質中PAHs的濃度變化為：上遊＜中遊＜下遊，這與汙染源排放、吸附作用等相關；同一區域不同介質的2～3環PAHs百分比為：地下河水＞沉積物＞土壤，而4～6環PAHs百分比則相反。
위료연구암용지하하계통내다충개질중다배방경（PAHs）적농도、조성화분포특정，이엄서모전형암용지하하위례，이용2013—2014년동기적공기、지하하수、침적물화토양양품측시수거，대불동배경개질중16충다배방경（PAHs）적농도、조성화분포특정진행대비분석。결과표명，공기화지하하수이2～3배PAHs위주，기중공기적2～3배PAHs비례위71.66％，지하하수적2～3배PAHs비례위54.84％；침적물화토양이4～6배PAHs위주，기중침적물적4～6배PAHs비례위54.26％，토양적4～6배PAHs비례위65.06％；배경개질중PAHs적농도변화위：상유＜중유＜하유，저여오염원배방、흡부작용등상관；동일구역불동개질적2～3배PAHs백분비위：지하하수＞침적물＞토양，이4～6배PAHs백분비칙상반。
In order to understand the contamination characteristics of PAHs in different environmental media of karst underground river,the authors choose the underground river of Guangxi as a study object.Based on the data of air,groundwater,sediment and soil samples gathered during the same term from 2013 to 2014,contras-tive analysis is done in light of the concentration,composition and distribution characteristics of 16 kinds of PAHs.The results show that PAHs with 2 to 3 rings are dominated in the air and underground river water, which accounts for 71.66% and 54.84% of the total PAHs.And PAHs with 4 to 6 rings are dominated in the soil and sediment of the underground river,which accounts for 54.26% and 65.06% of the total PAHs.The distribution of PAHs in environmental media along the underground river indicates that the mean concentration PAHs in upstream area is less than that of midstream,and that of midstream is less than that of downstream,be-cause of pollution discharge and absorption.The percentage of variation of PAHs with 2 to 3 rings indicates that the percentage of the underground river is more than that of sediment which is more than that of soil,but the percentage of variation of PAHs with 4 to 6 rings is opposite.
