Abstract
Revised water quality guideline values (WQGVs) are presented for the metals aluminium (Al), gallium (Ga) and molybdenum (Mo) in receiving marine environments. These elements are commonly found in elevated concentrations in alumina refinery waste streams, yet current WQGVs fail to accurately assess the environmental risk. Here, chronic biological effects data we have generated over the course of several years were combined with toxicity data from the open literature to construct species sensitivity distributions (SSDs) which enabled the computation of revised WQGVs for Al, Ga and Mo in marine environments. These procedures are in accordance with internationally recommended derivation procedures, and newly computed WQGVs may be incorporated in regulatory frameworks aimed at sustainable exploitation of environmental resources and ongoing protection of the marine estate. Where the available datasets allowed such distinction, separate SSDs were constructed for temperate and tropical environments and zone-specific WQGVs derived. Extrapolated from the SSDs, WQGVs of 56 μg Al L−1, 800 μg Ga L−1 and 3.88 mg Mo L−1 (in the 0.45-μm filtered fraction) for 95% species protection were recommended for implementation in both temperate and tropical receiving environments. Currently, there is insufficient validation to separate the tropical from the temperate data and in most cases, application of the generic WQGVs is recommended.
| Original language | English |
|---|---|
| Pages (from-to) | 26592-26602 |
| Number of pages | 11 |
| Journal | Environmental Science and Pollution Research |
| Volume | 25 |
| Issue number | 26 |
| Early online date | 11 Jul 2018 |
| DOIs | |
| Publication status | Published - Sep 2018 |
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Water quality guideline values for aluminium, gallium and molybdenum in marine environments. / van Dam, Joost W.; Trenfield, Melanie A.; Streten, Claire; Harford, Andrew J.; Parry, David; van Dam, Rick A.
In: Environmental Science and Pollution Research, Vol. 25, No. 26, 09.2018, p. 26592-26602.Research output: Contribution to journal › Article › Research › peer-review
TY - JOUR
T1 - Water quality guideline values for aluminium, gallium and molybdenum in marine environments
AU - van Dam, Joost W.
AU - Trenfield, Melanie A.
AU - Streten, Claire
AU - Harford, Andrew J.
AU - Parry, David
AU - van Dam, Rick A.
PY - 2018/9
Y1 - 2018/9
N2 - Revised water quality guideline values (WQGVs) are presented for the metals aluminium (Al), gallium (Ga) and molybdenum (Mo) in receiving marine environments. These elements are commonly found in elevated concentrations in alumina refinery waste streams, yet current WQGVs fail to accurately assess the environmental risk. Here, chronic biological effects data we have generated over the course of several years were combined with toxicity data from the open literature to construct species sensitivity distributions (SSDs) which enabled the computation of revised WQGVs for Al, Ga and Mo in marine environments. These procedures are in accordance with internationally recommended derivation procedures, and newly computed WQGVs may be incorporated in regulatory frameworks aimed at sustainable exploitation of environmental resources and ongoing protection of the marine estate. Where the available datasets allowed such distinction, separate SSDs were constructed for temperate and tropical environments and zone-specific WQGVs derived. Extrapolated from the SSDs, WQGVs of 56 μg Al L−1, 800 μg Ga L−1 and 3.88 mg Mo L−1 (in the 0.45-μm filtered fraction) for 95% species protection were recommended for implementation in both temperate and tropical receiving environments. Currently, there is insufficient validation to separate the tropical from the temperate data and in most cases, application of the generic WQGVs is recommended.
AB - Revised water quality guideline values (WQGVs) are presented for the metals aluminium (Al), gallium (Ga) and molybdenum (Mo) in receiving marine environments. These elements are commonly found in elevated concentrations in alumina refinery waste streams, yet current WQGVs fail to accurately assess the environmental risk. Here, chronic biological effects data we have generated over the course of several years were combined with toxicity data from the open literature to construct species sensitivity distributions (SSDs) which enabled the computation of revised WQGVs for Al, Ga and Mo in marine environments. These procedures are in accordance with internationally recommended derivation procedures, and newly computed WQGVs may be incorporated in regulatory frameworks aimed at sustainable exploitation of environmental resources and ongoing protection of the marine estate. Where the available datasets allowed such distinction, separate SSDs were constructed for temperate and tropical environments and zone-specific WQGVs derived. Extrapolated from the SSDs, WQGVs of 56 μg Al L−1, 800 μg Ga L−1 and 3.88 mg Mo L−1 (in the 0.45-μm filtered fraction) for 95% species protection were recommended for implementation in both temperate and tropical receiving environments. Currently, there is insufficient validation to separate the tropical from the temperate data and in most cases, application of the generic WQGVs is recommended.
KW - Alumina refinery
KW - Chronic toxicity
KW - Marine ecotoxicology
KW - Seawater
KW - Species sensitivity distribution
KW - Tropical
KW - Water quality guidelines
UR - http://www.scopus.com/inward/record.url?scp=85049673663&partnerID=8YFLogxK
U2 - 10.1007/s11356-018-2702-y
DO - 10.1007/s11356-018-2702-y
M3 - Article
VL - 25
SP - 26592
EP - 26602
JO - Environmental Science and Pollution Research
JF - Environmental Science and Pollution Research
SN - 0944-1344
IS - 26
ER -