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REACH

Mercury

EC number: 231-106-7 | CAS number: 7439-97-6

Life Cycle description
Uses advised against

Ecotoxicological information

Toxicity to aquatic plants other than algae

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Administrative data

Link to relevant study record(s)

Description of key information

Endpoints that are considered to be relevant in higher plant growth inhibition studies are biomass growth (end parameter: NOECb) and growth rate (end parameter: NOECr).  Both endpoints are included in the OECD-guidelines for these species (Guideline No 201, OECD 2006; Guideline No 221, OECD 1998), but growth rate is preferred as it is an ecologically more relevant endpoint.

Key value for chemical safety assessment

EC10 or NOEC for freshwater plants:: 20 µg/L
EC10 or NOEC for marine water plants:: 0.9 µg/L

Additional information

This table gives an overview of reliable chronic data to higher plants

Enhalus acoroides	Higher plant	HgCl2	Measured	10d-NOEC_growth	16020	K2	Bonifacio and Montano, 1998

Chara vulgaris

Higher plant

HgCl₂

Measured

14d-NOEC_{growth rate}

Heumann, 1987

Ascophyllum nodosum	Higher plant.	HgCl2	Nominal	10d-NOEC_growth	9	K2	Stromgren, 1980
Fucus serratus	Higher plant	HgCl2	Nominal	10d-NOEC_growth	0.9	K2	Stromgren, 1980
Fucus spiralis	Higher plant	HgCl2	Nominal	10d-NOEC_growth	9	K2	Stromgren, 1980
Fucus vesiculosus	Higher plant	HgCl2	Nominal	10d-NOEC_growth	9	K2	Stromgren, 1980
Pelvetia canaliculata	Higher plant	HgCl2	Nominal	10d-NOEC_growth	5	K2	Stromgren, 1980
Laminaria saccharina	Higher plant	HgCl2	Nominal	10d-NOEC_reproduction	1	K2	Thompson and Burrows, 1984
Gracilaria tenuistipitata	Higher plant	HgCl2	Nominal	4d-NOEC_{population growth}	60	K2	Haglund et al, 1996

Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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