A statistical evaluation of water quality trends in selected water bodies of Newfoundland and Labrador.

Journal of Environmental Engineering and Science | January 1, 2006| | Copyright

Abstract: Using water quality data collected since 1986, as part of the Canada-Newfoundland Water Quality Monitoring Agreement, 36 different water quality variables from 65 different water quality monitoring sites were examined for change over time. Moving averages, the Student's t test statistic, and Spearman's rank correlation coefficient were used. Throughout the province, turbidity and colour were generally displaying deteriorating trends, while conductivity, copper, lead, and mercury were consistently displaying improving trends. There was a notable deteriorating trend ...

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