Canadian Environmental Quality Guidelines for Mercury

Gaudet, C. L.; Lingard, S.; Cureton, P.M.; Keenleyside, Karen; Smith, Sherri L.; Raju, G. Suryanarayana

doi:10.1007/978-94-011-0153-0_131

Cited by 4 publications

(4 citation statements)

References 12 publications

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“…Canada has established a value of 0.14 mg kg −1 as a limit for mercury concentration in sediments for the protection of aquatic life (Gaudet et al 1995) and in USA 0.15 mg kg −1 is the concentration limit considered to avoid unwanted biological effects (Long and MacDonald, 1998). Thus, the mercury concentration levels found in the sediments of Aguamilpa Dam presents no problem to aquatic life.…”

Section: Discussionmentioning

confidence: 98%

Assessment of heavy metals in sediment of Aguamilpa Dam, Mexico

Rangel‐Peraza

Anda

González‐Farías

et al. 2015

Environ Monit Assess

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The Aguamilpa Dam is part of the reservoir cascade system formed by four reservoirs in the middle and lower part of the Santiago River. For decades, this system has received urban and industrial wastewater from the metropolitan area of Guadalajara and the runoff of agricultural fields located in the river basin. The present study was carried out to obtain a preliminary assessment on the concentration distribution of heavy metals (Al, Ba, Cd, Cr, Cu, Fe, Hg, Mg, Ni, Pb, and Zn) in surface sediments of the Aguamilpa reservoir collected from 10 sampling stations. The metal concentrations (mg kg(-1)) in the sampling stations ranged as follows: Al, 27,600-7760; Ba, 190.0-15.9; Cd, 0.27-0.02; Cr, 18.30-0.22; Cu, 60.80-0.79; Fe, 15,900-4740; Hg, 0.04-0.01; Mg, 7590-8.05; Ni, 189.00-0.24; Pb, 13.6-1.64; and Zn, 51.8-14.8. Significant spatial variation in concentrations was observed for Al, Fe, and Pb. Sediment pollution was evaluated using the enrichment factor, the geo-accumulation index, the pollution load index, and sediment quality guidelines. Based on geo-accumulation and pollution load indexes, Aguamilpa sediments were found, in some sampling stations, as unpolluted to moderately polluted with Ni, Cd, Cu, and Mg. Enrichment factors showed that Cd is highly related to agricultural activities that take place in the surrounding areas of the Aguamilpa reservoir. Despite these results, none of the heavy metals evaluated exceeded international concentrations limits, indicating that the Aguamilpa reservoir surface sediments are not contaminated.

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Section: Discussionmentioning

confidence: 98%

Assessment of heavy metals in sediment of Aguamilpa Dam, Mexico

Rangel‐Peraza

Anda

González‐Farías

et al. 2015

Environ Monit Assess

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“…The lowest concentration was recorded at PK 30 (0.20 ± 0.10 lg/kg). Based on this result, PK 24 and PK 5 had exceeded the Canadian interim mercury guidelines for river and marine sediment where the threshold limit is 140 lg/kg (Gaudet et al 1995). Mercury concentration was found to be highest within Lumut Strait where the mixing of water and suspended particles from Langat River, Klang River and seawater occurs.…”

Section: Sample Collection and Analytical Proceduresmentioning

confidence: 90%

From Sources to Solution

Aris¹,

Ismail²,

Harun³

et al. 2014

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“…Today, the Hg concentration found in Minamata Bay is still high compared to other regions of the world. However, the Hg concentrations in the sediment samples under study were all below the Canadian interim marine and freshwater sediment guideline (140 μg/kg) (Gaudet et al 1995) and China's soil interim environmental guideline (200 μg/kg) (Wu et al 1991) (Fig. 4).…”

Section: Mercury Concentration In Estuaries and Coastal Sedimentmentioning

confidence: 97%

“…The objective of the present study is to provide the latest information on the mercury concentration and pollution in surface estuaries and coastal sediments along the Strait of Malacca. In addition, the mercury concentrations detected in this study were compared with the Canadian interim marine and freshwater sediment guideline for mercury (Gaudet et al 1995) and interim environmental guidelines for mercury in soil in China (Wu et al 1991). Ultimately, the geoaccumulation index (I geo ) was used to determine the degree of mercury contamination of the estuary and coastal sediment along the Strait of Malacca.…”

Section: Introductionmentioning

confidence: 99%

Mercury contamination in the estuaries and coastal sediments of the Strait of Malacca

Looi

Aris

Yusoff

et al. 2014

Environ Monit Assess

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Sediment is a great indicator for assessing coastal mercury contamination. This work profiled the magnitude of mercury pollution in the tropical estuaries and coastal sediments of the Strait of Malacca. Mercury was extracted through the ultrasound-assisted mercury extraction method and analyzed using the flow injection mercury system. The mean concentration of mercury in the sediment samples was 61.43 ± 23.25 μg/kg, ranging from 16.55 ± 0.61 to 114.02 ± 1.54 μg/kg. Geoaccumulation index revealed that a total of 13% of sampling sites were moderately enriched with mercury. The northern part of the Strait of Malacca had the highest mean mercury (Hg) concentration (76.36 ± 27.25 μg/kg), followed by the southern (64.59 ± 16.09 μg/kg) and central (39.33 ± 12.91 μg/kg) parts. Sediment mercury concentration in the current study was lower than other regions like Japan, China, Indian, east Mediterranean, and Taiwan. When compared to the Canadian interim marine and freshwater sediment, China's soil interim environmental guidelines, mercury contamination in the Strait of Malacca was found to be below these permissible limits. Sediment organic matter content was found to have significant correlation with sediment mercury concentration. This study could provide the latest benchmark of mercury pollution and prove beneficial to future pollution studies in relation to monitoring works in tropical estuaries and coastal sediments.

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Canadian Environmental Quality Guidelines for Mercury

Cited by 4 publications

References 12 publications

Assessment of heavy metals in sediment of Aguamilpa Dam, Mexico

Assessment of heavy metals in sediment of Aguamilpa Dam, Mexico

From Sources to Solution

Mercury contamination in the estuaries and coastal sediments of the Strait of Malacca

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