As a result of the low hydrodynamics and inherent protection against waves and strong currents, estuarine areas tend to concentrate contaminants. Keywords: Contaminants Physicochemical parameters Seasonal variationĪnthropogenic contaminants discharged into aquatic environments can cause negative impacts to marine biota, especially in urbanized, industrialized or harbor sites. The present study suggested the high hydrodynamics and resulting coarser grain size accumulation as the cause for the relatively balanced environment conditions. High concentrations of metals were recorded in the water of sediment contamination.
The average values of water and its physicochemical parameters revealed an unstratified environment with a great influence of ocean waters. In parallel, grain size, organic matter and redox potential were also analyzed. In sediment samples, heavy metals’ potentially mobilizable fractions were evaluated. Water samples were evaluated for temperature, turbidity, salinity, Eh, oxygen content, pH, phosphorus, total organic carbons, and heavy metals. To provide information on heavy metals concentrations in water and sediments, samples were collected in seven sampling stations in São Marco Bay’s harbor area, seasonally, from August 2017 to September 2018. Difficult access to and low availability of logistical conditions result in a lack of information on environmental quality in these regions. The assessment of pollution in poor regions remains a challenge for developing countries.
Metal Pollution in Sediments and Water of Sao Marco Harbor (Maranhão, Brazil). *Correspondence author: Fonseca E M, Graduation Program in Dynamics of Oceans and Earth, Fluminense Federal University, 5 Niterói/RJ, Caixa Postal: 106051, CEP: 24230-971, Brazil Email: to cite this article:Delgado J d F, Lima L da S Britto E B C C, Almeida M P, Vieira K S, Amorim R M, Baptista Neto J A, Fonseca E M. Graduation Program in Dynamics of Oceans and Earth, Fluminense Federal University, Brazil (Maranhão, Brazil) Delgado J de F, Lima L da S Britto E B C C, Almeida M P, Vieira K S, Amorim R M, Baptista Neto J A and Fonseca E M* Research Article Evaluation of Metal Pollution in Sediments
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