【摘要】：研究有機污染物對不同水生生物毒性的種間關(guān)系有助于探討有機污染物對水生生物的毒性作用模式。本文應(yīng)用1 470種有機化合物對發(fā)光菌的毒性數(shù)據(jù)和949種有機化合物對魚的毒性數(shù)據(jù),研究有機化合物對發(fā)光菌和魚的種間毒性作用模式。結(jié)果表明,有機化合物對發(fā)光菌和魚的毒性呈正相關(guān),但種間相關(guān)性較差。通過計算毒性比率TR值表明多數(shù)類別有機化合物具有相似的種間毒性作用模式�；�和弱惰性化合物對發(fā)光菌和魚的毒性均與辛醇水分配系數(shù)log Kow具有良好的線性關(guān)系,這說明基線和弱惰性化合物在發(fā)光菌和魚體內(nèi)的殘余量CBR值均為一個常數(shù)。這些化合物對發(fā)光菌和魚具有相似的毒性作用模式和生物吸收過程。另外,一些親水性化合物的log TR值具有較大的種間差異,即對發(fā)光菌和魚的毒性效應(yīng)具有較大的種間差異,表明親水性化合物對發(fā)光菌為反應(yīng)型化合物,而對魚為麻醉型化合物。有機化合物對發(fā)光菌和魚的毒性種間相關(guān)性通過引入疏水性參數(shù)得到了一定的改善,這表明這些親水性化合物毒性效應(yīng)的種間差異有一部分歸因于有機化合物在發(fā)光菌和魚體內(nèi)的生物富集不同,而不是由于與生物分子的反應(yīng)性不同。這些親水性化合物相對于魚的腮和皮膚更容易通過發(fā)光菌的細胞膜,與生物分子發(fā)生化學(xué)反應(yīng),從而具有較高的毒性效應(yīng)。Log Kow大于7的化合物對發(fā)光菌和魚均具有較低的毒性,說明有機化合物在生物體內(nèi)的富集能力對有機化合物剩余毒性的判別起著重要作用。
[Abstract]:Studying the interspecific relationship of the toxicity of organic pollutants to different aquatic organisms is helpful to study the toxicity model of organic pollutants to aquatic organisms. In this paper, the toxicity data of 1,470 organic compounds to luminescent bacteria and 949 organic compounds to fish were used to study the interspecific toxicity of organic compounds to luminescent bacteria and fish. The results showed that the toxicity of organic compounds to luminescent bacteria and fish was positively correlated, but the interspecific correlation was poor. The TR value of the toxicity ratio showed that most of the organic compounds had similar interspecific toxicity patterns. The toxicity of baselines and weakly inert compounds to luminescent bacteria and fish showed a good linear relationship with the octanol water partition coefficient (log Kow), which indicated that the CBR values of baseline and weakly inert compounds were both a constant. These compounds have similar toxicity patterns and bioabsorption processes to luminescent bacteria and fish. In addition, the log TR values of some hydrophilic compounds have great interspecific differences, that is, the toxic effects of some hydrophilic compounds on luminescent bacteria and fish are quite different, which indicates that the hydrophilic compounds are reactive compounds to luminescent bacteria. For fish, they are anesthetic compounds. The correlation between the toxicity of organic compounds to luminescent bacteria and fish was improved by introducing hydrophobic parameters. It is suggested that the differences in the toxicity effects of these hydrophilic compounds are due in part to the different bioconcentration of organic compounds in luminescent bacteria and fish, not to their reactivity with biomolecules. These hydrophilic compounds react with biomolecules more easily than fish's gills and skin through the cell membranes of luminescent bacteria. Therefore, the compounds with. Log Kow > 7 have lower toxicity to luminescent bacteria and fish, indicating that the enrichment ability of organic compounds in organism plays an important role in judging the residual toxicity of organic compounds.
【作者單位】： 東北師范大學(xué)環(huán)境學(xué)院;
【基金】：國家自然科學(xué)基金(21377022,21777022)
【分類號】：X171.5

【相似文獻】

相關(guān)期刊論文 前10條

1 袁星,郎佩珍,洪暉,趙元慧,韓朔睽,王連生,馬梅,王子健;應(yīng)用發(fā)光菌測定有機化合物的毒性[J];環(huán)境化學(xué);1994年03期

2 魏東斌,張愛茜,王連生,胡洪營;取代萘系列化合物對發(fā)光菌毒性的建模及穩(wěn)健性檢驗[J];環(huán)境科學(xué);2002年S1期

3 張澤光;黃滿紅;陳東輝;陳亮;;十溴聯(lián)苯醚對大型蚤和發(fā)光菌的毒性研究[J];環(huán)境工程;2013年S1期

4 魏東斌,翟麗華,董春宏,胡洪營;取代苯化合物對發(fā)光菌急性毒性的測定及預(yù)測[J];環(huán)境科學(xué);2002年S1期

5 陳水松;王英才;胡文;章純;劉輝;;不同條件對2種發(fā)光菌毒性測試的影響研究[J];環(huán)境科學(xué)與技術(shù);2013年S2期

6 林志芬,于紅霞,許士奮,王連生;發(fā)光菌生物毒性測試方法的改進[J];環(huán)境科學(xué);2001年02期

7 李彬,李培軍,王晶,楊桂芬,張海榮;重金屬污染土壤毒性的發(fā)光菌法診斷[J];應(yīng)用生態(tài)學(xué)報;2001年03期

8 黃偉英;劉樹深;莫凌云;劉保奇;;9種酚及其混合物對淡水發(fā)光菌的毒性作用[J];桂林工學(xué)院學(xué)報;2008年01期

9 馮子雅;馮長君;;鹵代苯對呆頭魚、發(fā)光菌急性毒性的構(gòu)效關(guān)系研究[J];廣州化工;2013年06期

10 羅建輝;發(fā)光菌的特性及其應(yīng)用[J];微生物學(xué)免疫學(xué)進展;1991年01期

相關(guān)會議論文 前5條

1 張晶;劉樹深;劉海玲;;8種離子液對發(fā)光菌的毒性影響[A];第五屆全國環(huán)境化學(xué)大會摘要集[C];2009年

2 黃新新;蔡強;何苗;施漢昌;;用于環(huán)境污染物綜合毒性評價的重組發(fā)光細菌載體的構(gòu)建[A];Proceedings of Conference on Environmental Pollution and Public Health（CEPPH 2012）[C];2012年

3 皇甫鑫;廖，

本文編號：2303498