Table 1

Effects of different concentrations of heavy metals and pentachlorophenol (Pent.) on the photosynthetic efficiency (slope coefficients) of C. reinhardtii after 24 h exposure.

Concentration,

Substances

mg l-1

Copper

Nickel

Lead

Zinc

Pent.


0.0

0.140

0.140

0.140

0.140

0.140

0.1

0.131

0.232

0.150

0.224

0.098

0.5

0.055

0.228

0.133

0.153

0.090

1.0

0.015

0.251

0.138

0.180

0.002

1.5

0.026

0.267

0.176

0.174

2.0

0.047

0.244

0.160

0.165

5.0

0.014

10.0

0.014

R

- 0.66

0.64

0.60

- 0.54

- 0.83


R - coefficient of correlation between increasing concentrations of the substances tested and the photosynthetic efficiency.

Danilov and Ekelund BMC Ecology 2001 1:1   doi:10.1186/1472-6785-1-1

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