氯苯类化合物在食蚊鱼（盖氏食蚊鱼）体内的致死浓度和致死体积分数

Internal lethal concentration and internal lethal volume fraction of chlorobenzenes in mosquito fish (Gambusia affinis).

作者信息

Sripongpun G, Hawker D W, Connell D W

机构信息

Faculty of Environmental Sciences, Griffith University, Nathan, Queensland, Australia.

出版信息

Chemosphere. 1998 Aug;37(5):911-24. doi: 10.1016/s0045-6535(98)00094-0.

DOI:10.1016/s0045-6535(98)00094-0

PMID:9717246

Abstract

The internal lethal concentration (ILC) and internal lethal volume fraction (ILVF) of a series of chlorobenzenes with mosquito fish (Gambusia affinis) were measured by a semistatic test approach in closed jars. Their variation with exposure times were also investigated with different aqueous chemical concentrations and different exposure periods, the measured ILC values on wet weight and lipid weight bases ranged from 3-12 mmol kg-1 and 46-208 mmol kg-1 lipid, respectively. Measured ILVF values covered a range from 0.008-0.025 (L toxicant L-1 lipid). These values are consistent with those found in literature. Generally ILC and ILVF values decreased with increasing exposure time with rate constants ranging from 0.03 to 0.33 day-1 (wet and lipid weight) for ILC and 0.03 to 0.31 day-1 for ILVF.

摘要

采用半静态试验方法，在密闭广口瓶中测定了一系列氯苯对食蚊鱼（盖氏食蚊鱼）的内部致死浓度（ILC）和内部致死体积分数（ILVF）。还研究了它们在不同的水化学浓度和不同暴露时期下随暴露时间的变化情况，以湿重和脂质重为基础测得的ILC值分别为3 - 12 mmol kg⁻¹和46 - 208 mmol kg⁻¹脂质。测得的ILVF值范围为0.008 - 0.025（有毒物质L⁻¹脂质）。这些值与文献中报道的一致。一般来说，ILC和ILVF值随暴露时间增加而降低，ILC的速率常数范围为0.03至0.33天⁻¹（湿重和脂质重），ILVF的速率常数范围为0.03至0.31天⁻¹。