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REACH

Mercury

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

Life Cycle description
Uses advised against

Ecotoxicological information

Long-term toxicity to aquatic invertebrates

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Administrative data

Link to relevant study record(s)

Description of key information

Different chronic levels were retained for the different aquatic invertebrates (crustaceans, insects, molluscs and worms). 
In the freshwater department the lowest value was found for H.azteca (crustacean), in de saltwater department the key value was calculated for the mollusc C.fornicata

Key value for chemical safety assessment

Fresh water invertebrates

Effect concentration:: 0.62 µg/L

Marine water invertebrates

Effect concentration:: 0.25 µg/L

Additional information

Overview of reliable chronic effect levels for invertebrates in the marine environment

Species	Trophic level	Hg-salt		Effect parameter	Value (µg Hg/L)	Klimisch score	Reference
Artemia franciscana	Crustacean	HgCl₂	Measured	3d-NOEC_{hatching and emergence}	2	K2	Go et al, 1980
Callinectes sapidus	Crustacean	HgCl₂	Measured	35d-NOEC_{hatching and emergence}	4.9	K1	McKenney and Costlow, 1982
Mysidopsis bahia	Crustacean	HgCl₂	Measured	44d-NOEC_reproduction 44d-NOEC_mortality	0.8 0.8	K1 K1	Gentille et al, 1982
Mysidopsis bahia	Crustacean	HgCl₂	Measured	35d-NOEC_reproduction 35d-NOEC_mortality	0.8 0.8	K1 K1	Lussier and Gentille, 1985
Penaeus indicus	Crustacean	HgCL₂	Measured	28d-NOEC_growth	6	K1	McClurgh, 1984
Brachionus plicatilis	Rotifera	HgCL₂	Nominal	2d-NOEC_reproduction	10	K2	Juchelka, 1995
Crepidula fornicata	Mollusc	HgCl₂	Measured	112d-NOEC_reproduction	0.25	K1	Thain, 1984

Overview of reliable effect levels for invertebrates in the freshwater environment

Species	Trophic level	Hg-salt		Effect parameter	Value (µg Hg/L)	Klimisch score	Reference
Cerodaphnia dubia	Crustacean	Hg(NO₃)₂	Measured	7d-NOEC_mortality. 7d-NOEC_{reproduction.}	8.5 8.5	K1 K1	Spehar and Fiandt, 1986
Daphnia magna	Crustacean	HgCl₂	Measured	21d-NOEC_mortality	2,2	K2	Enserink, 1991
Daphnia magna	Crustacean	Hg(NO₃)₂	Measured	21d-NOEC_reproduction	1.7	K1	Biesinger and Christensen, 1972
Daphnia magna	Crustacean	HgCl₂	Nominal	28d-NOEC_reproduction	4.07	K2	Tsui and Wang, 2005
Daphnia magna	Crustacean	HgCl₂	Nominal	21d-NOEC_growth	10	K2	De Coen et al, 1997
Daphnia magna	Crustacean	HgCl₂	Nominal	28d-NOEC_growth	4.07	K2	Tsui and Wang, 2005
Daphnia similis	Crustacean	HgCL₂	Nominal	28d-NOEC_mortality 28d-NOEC_growth	10 50	K1 K1	Soundrapandian and Venkataraman, 1990
Hyalella azteca	Crustacean	HgCl₂	Measured	10wk-NOEC_reproduction	0.62	K2	Borgmann et al, 1993
Cyclops species	Crustacean	HgCl₂	Measured	14d-NOEC_smortality	18	K1	Borgmann, 1980
Viviparius bengalensis	Mollusc	HgSO₄	Nominal	7d-NOEC_growth 7d-NOEC_mortality 7d-NOEC_mortality	20-90 30 100	K1 K2 K2	Muley and Mane, 1988
Viviparius bengalensis	Mollusc	HgCl₂	Nominal	7d-NOEC_growth	20-100	K1	Muley and Mane, 1988
Villosa iris	Mollusc	HgCl₂	Measured	21d-NOEC_growth 21d-NOEC_mortality	4 114	K2 K2	Valenti et al, 2005
Aedes aegypti	Insect	Hg+	Nominal	16d-NOEC_development	500	K2	Rayms-Keller et al, 1998
Caenorhabditis elegans	Worm	HgCl₂	Nominal	4d-NOEC_development 4d-NOEC_development	200 20,000	K2 K2	Donkin, Eiteman and Williams, 1995

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