An algal biosensor for the monitoring of water toxicity in estuarine environments

被引：118

作者：

Campanella, L

Cubadda, F

Sammartino, MP

Saoncella, A

机构：

[1] Univ Rome La Sapienza, Dipartimento Chim, I-00185 Rome, Italy

[2] Ist Super Sanita, I-00161 Rome, Italy

来源：

WATER RESEARCH | 2001年 / 35卷 / 01期

关键词：

algal biosensor; marine pollution; environmental monitoring; water toxicity assessment; toxicity biosensor;

D O I：

10.1016/S0043-1354(00)00223-2

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

An algal biosensor for toxicity assessment of estuarine waters is proposed. The sensor was obtained by coupling a suited algal bioreceptor (the cyanobacterium Spirulina subsalsa) to an amperometric gas diffusion electrode. The analytical device allows the monitoring of the evolution of photosynthetic O-2 and the detection of alterations due to toxic effects caused by environmental pollutants present in the medium. Four chemical species representative of three main different classes of pollutants (heavy metals, triazinic herbicides, carbamate insecticides) were tested at different concentrations using a standardized natural water as experimental medium. In all the cases a toxic response was detected (i.e. a dose-related inhibition of photosynthetic activity was recorded) with good reproducibility. (C) 2000 Elsevier Science Ltd. hll rights reserved.

引用

页码：69 / 76

页数：8

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