Data

Background quality for coastal marine waters of the North West Shelf, Western Australia

Australian Ocean Data Network
Condie, Scott (Point of contact) Luke Edwards (Distributes)
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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=https://catalogue.aodn.org.au:443/geonetwork/srv/api/records/516811d7-cd2b-207a-e0440003ba8c79dd&rft.title=Background quality for coastal marine waters of the North West Shelf, Western Australia&rft.identifier=516811d7-cd2b-207a-e0440003ba8c79dd&rft.publisher=Australian Ocean Data Network&rft.description=Water quality surveys were undertaken in February and June of 2003 to determine dissolved concentrations of cadmium, chromium, copper, lead and zinc, total mercury, polyaromatic hydrocarbons, phenols, BTEX chemicals and petroleum hydrocarbons in and around the Dampier Archipelago and Port Hedland. Most sampling sites were located in areas unlikely to be contaminated from anthropogenic sources, but for comparative purposes some sites were also located in potentially contaminated areas. This work was undertaken to provide an estimate of background concentrations for selected metals and organics in the marine waters of the North West Shelf, and to ascertain whether the guideline trigger values from ANZECC & ARMCANZ (2000) are relevant to the region. The results of this study indicate that the coastal waters of the North West Shelf are generally of very high quality. The concentrations of metals were low by world standards, with localised elevations of some metals adjacent to industrial centres and ports. Metal concentrations at the time of sampling met the environmental quality guidelines for a very high level of ecological protection (99% species protection) throughout the sampled area, with the exception of the inner harbour at Port Hedland, where copper and zinc levels were elevated above background, but below the 95% species protection guidelines, which represent a high level of ecological protection. No organic chemicals were detected in any of the samples. The reporting limits were well below the guideline trigger values recommended in ANZECC & ARMCANZ (2000) for a very high level of ecological protection for the five organics for which guideline values were available. The findings of this study suggest that ANZECC & ARMCANZ (2000) 99% species protection guidelines are relevant to the region for all metals analysed, except cobalt, for which the 95% species protection guideline is recommended for use. A set of Environmental Quality Criteria is proposed.Maintenance and Update Frequency: unknownStatement: Original record compiled for the Western Australian Marine Science Institution (WAMSI), Project 3.8, 2008.&rft.creator=Anonymous&rft.date=2017&rft.coverage=westlimit=114; southlimit=-24; eastlimit=122; northlimit=-17&rft.coverage=westlimit=114; southlimit=-24; eastlimit=122; northlimit=-17&rft_rights=No Restrictions&rft_subject=environment&rft_subject=oceans&rft.type=dataset&rft.language=English Access the data
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Brief description

Water quality surveys were undertaken in February and June of 2003 to determine dissolved concentrations of cadmium, chromium, copper, lead and zinc, total mercury, polyaromatic hydrocarbons, phenols, BTEX chemicals and petroleum hydrocarbons in and around the Dampier Archipelago and Port Hedland. Most sampling sites were located in areas unlikely to be contaminated from anthropogenic sources, but for comparative purposes some sites were also located in potentially contaminated areas. This work was undertaken to provide an estimate of background concentrations for selected metals and organics in the marine waters of the North West Shelf, and to ascertain whether the guideline trigger values from ANZECC & ARMCANZ (2000) are relevant to the region. The results of this study indicate that the coastal waters of the North West Shelf are generally of very high quality. The concentrations of metals were low by world standards, with localised elevations of some metals adjacent to industrial centres and ports. Metal concentrations at the time of sampling met the environmental quality guidelines for a very high level of ecological protection (99% species protection) throughout the sampled area, with the exception of the inner harbour at Port Hedland, where copper and zinc levels were elevated above background, but below the 95% species protection guidelines, which represent a high level of ecological protection. No organic chemicals were detected in any of the samples. The reporting limits were well below the guideline trigger values recommended in ANZECC & ARMCANZ (2000) for a very high level of ecological protection for the five organics for which guideline values were available. The findings of this study suggest that ANZECC & ARMCANZ (2000) 99% species protection guidelines are relevant to the region for all metals analysed, except cobalt, for which the 95% species protection guideline is recommended for use. A set of Environmental Quality Criteria is proposed.

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Maintenance and Update Frequency: unknown
Statement: Original record compiled for the Western Australian Marine Science Institution (WAMSI), Project 3.8, 2008.

Notes

Credit
K. Wenziker
Credit
K. McAlpine
Credit
S. Apte
Credit
R. Masini

Modified: 06 2008

Data time period: 2000-07-01 to 2007-06-30

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122,-17 122,-24 114,-24 114,-17 122,-17

118,-20.5

text: westlimit=114; southlimit=-24; eastlimit=122; northlimit=-17

Subjects
environment | oceans |

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Other Information
North West Shelf Joint Environmental Management Study

uri : http://www.cmar.csiro.au/nwsjems/index.html

Identifiers
  • global : 516811d7-cd2b-207a-e0440003ba8c79dd
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