Toxic effects of chlorinated organic compounds and potassium dichromate on growth rate and photosynthesis of marine phytoplankton

Kresten Ole Kusk; Niels Nyholm

doi:10.1016/0045-6535(92)90079-7

Toxic effects of chlorinated organic compounds and potassium dichromate on growth rate and photosynthesis of marine phytoplankton

Kresten Ole Kusk
, Niels Nyholm

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Abstract

The toxic effects of potassium dichromate (K₂Cr₂O₇), 3,4-dichloroaniline (DCA) and 2,4-dichlorophenol (DCP) on the photosynthesis of natural marine phytoplankton and five species of marine microalgae were investigated. Effect concentrations corresponding to a 50 % depression of photosynthesis (6h EC₅₀) were found within relatively narrow ranges of 3.3–7.2 mg/l and 1.5–12 mg/l for DCA and DCP respectively, whereas the sensitivities towards K₂Cr₂O₇ varied much more. The effects of DCA and DCP on the growth rate of some species were also investigated. EC₅₀ values for DCP and DCA were found within the ranges 0.5–20 mg/l and 1.1–2.6 mg/l respectively. Diatoms were generally found to be the most sensitive species.

Original language	English
Journal	Chemosphere
Volume	25
Issue number	6
Pages (from-to)	875-886
ISSN	0045-6535
DOIs	https://doi.org/10.1016/0045-6535(92)90079-7
Publication status	Published - 1992

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@article{e9985ec43bd047a4abc44dd356632f27,

title = "Toxic effects of chlorinated organic compounds and potassium dichromate on growth rate and photosynthesis of marine phytoplankton",

abstract = "The toxic effects of potassium dichromate (K2Cr2O7), 3,4-dichloroaniline (DCA) and 2,4-dichlorophenol (DCP) on the photosynthesis of natural marine phytoplankton and five species of marine microalgae were investigated. Effect concentrations corresponding to a 50 \% depression of photosynthesis (6h EC50) were found within relatively narrow ranges of 3.3–7.2 mg/l and 1.5–12 mg/l for DCA and DCP respectively, whereas the sensitivities towards K2Cr2O7 varied much more. The effects of DCA and DCP on the growth rate of some species were also investigated. EC50 values for DCP and DCA were found within the ranges 0.5–20 mg/l and 1.1–2.6 mg/l respectively. Diatoms were generally found to be the most sensitive species.",

author = "Kusk, \{Kresten Ole\} and Niels Nyholm",

year = "1992",

doi = "10.1016/0045-6535(92)90079-7",

language = "English",

volume = "25",

pages = "875--886",

journal = "Chemosphere",

issn = "0045-6535",

publisher = "Elsevier",

number = "6",

}

TY - JOUR

T1 - Toxic effects of chlorinated organic compounds and potassium dichromate on growth rate and photosynthesis of marine phytoplankton

AU - Kusk, Kresten Ole

AU - Nyholm, Niels

PY - 1992

Y1 - 1992

N2 - The toxic effects of potassium dichromate (K2Cr2O7), 3,4-dichloroaniline (DCA) and 2,4-dichlorophenol (DCP) on the photosynthesis of natural marine phytoplankton and five species of marine microalgae were investigated. Effect concentrations corresponding to a 50 % depression of photosynthesis (6h EC50) were found within relatively narrow ranges of 3.3–7.2 mg/l and 1.5–12 mg/l for DCA and DCP respectively, whereas the sensitivities towards K2Cr2O7 varied much more. The effects of DCA and DCP on the growth rate of some species were also investigated. EC50 values for DCP and DCA were found within the ranges 0.5–20 mg/l and 1.1–2.6 mg/l respectively. Diatoms were generally found to be the most sensitive species.

AB - The toxic effects of potassium dichromate (K2Cr2O7), 3,4-dichloroaniline (DCA) and 2,4-dichlorophenol (DCP) on the photosynthesis of natural marine phytoplankton and five species of marine microalgae were investigated. Effect concentrations corresponding to a 50 % depression of photosynthesis (6h EC50) were found within relatively narrow ranges of 3.3–7.2 mg/l and 1.5–12 mg/l for DCA and DCP respectively, whereas the sensitivities towards K2Cr2O7 varied much more. The effects of DCA and DCP on the growth rate of some species were also investigated. EC50 values for DCP and DCA were found within the ranges 0.5–20 mg/l and 1.1–2.6 mg/l respectively. Diatoms were generally found to be the most sensitive species.

U2 - 10.1016/0045-6535(92)90079-7

DO - 10.1016/0045-6535(92)90079-7

M3 - Journal article

SN - 0045-6535

VL - 25

SP - 875

EP - 886

JO - Chemosphere

JF - Chemosphere

IS - 6

ER -

Toxic effects of chlorinated organic compounds and potassium dichromate on growth rate and photosynthesis of marine phytoplankton

Abstract

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