Abstract:
:Ria Formosa is a highly productive lagoon in South-Western Europe, supporting 90% of Portuguese clam production. Decreases in shellfish production have been ascribed to deterioration of water quality due to sewage discharges. Nevertheless, a thorough study considering their impact on the whole lagoon system has been missing. This work determined the sewage footprint from the major sewage treatment plants (STP) regarding eutrophication and microbial contamination within a two-year monitoring program. This focused on salinity, oxygen, nutrients, chlorophyll-a and faecal coliforms. Areas closer to sewage discharges showed an evident impact with maximum effects detected at the major STP. However, globally, the Ria Formosa did not show clear eutrophication problems due to high tidal flushing. Ammonium, oxygen, chlorophyll-a and faecal coliforms, unlike the other parameters, showed no seasonality. Microbiological contamination was of great concern and public health issues could be avoided by settling shellfish beds at least 500 m away from discharge points.
journal_name
Mar Pollut Bulljournal_title
Marine pollution bulletinauthors
Cravo A,Fernandes D,Damião T,Pereira C,Reis MPdoi
10.1016/j.marpolbul.2015.05.029subject
Has Abstractpub_date
2015-07-15 00:00:00pages
197-209issue
1-2eissn
0025-326Xissn
1879-3363pii
S0025-326X(15)00286-6journal_volume
96pub_type
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journal_title:Marine pollution bulletin
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journal_title:Marine pollution bulletin
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journal_title:Marine pollution bulletin
pub_type: 杂志文章
doi:10.1016/j.marpolbul.2008.04.038
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journal_title:Marine pollution bulletin
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journal_title:Marine pollution bulletin
pub_type: 杂志文章
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journal_title:Marine pollution bulletin
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doi:10.1016/j.marpolbul.2010.02.021
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journal_title:Marine pollution bulletin
pub_type: 历史文章,杂志文章
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journal_title:Marine pollution bulletin
pub_type: 杂志文章
doi:10.1016/j.marpolbul.2007.06.004
更新日期:2007-10-01 00:00:00
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