Seasonal variations in physico-chemical characteristics of River Yamuna in Haryana and its ecological best-designated use

Shehata

Egypt. J. of Aquatic Biolo. and Fish.

2016

The present study aims to describe the effect of heavy metals: copper, manganese, iron and zinc on the water quality of El-Bagouria Canal at Kafr El-Zayat region, El-Gharbiah Governorate. Seasonal variations of physico-chemical parameters were studied during the period from summer, 2013 to spring, 2014. Also, to study their effects on the different organs of the commercial fish species; Nile tilapia, Oreochromis niloticus by studying some of biochemical parameters of this fish species (total protein, total lipids, total carbohydrates, ASAT and ALAT) during the study period.Results revealed that, heavy metals in the water showed seasonal variations. Also, data exhibited the highest values of heavy metals in the different organs of O. niloticus were recorded during winter in the liver and kidney and the lowest were observed in the muscles. Biochemical analysis indicated devastating effects, especially enzymes activities, in the metabolic organs. Statistical analysis using analysis of variance (ANOVA, at p<0.05) based on data represent the measured values of heavy metals in the different organs of O. niloticus during the different seasons. One way analysis proved that, there were highly significant differences between the metals and between the different seasons also between different organs. On the other hand, two ways of ANOVA provided highly significant differences between organs and metals at the same seasons. While, non-significant differences were detected at the interactions between seasons and organs at the same metals and between seasons and metals at the same organs. One way analysis for biochemical parameters in the different organs of O. niloticus during the different seasons proved that, there were highly significant differences between the parameters. Meanwhile, there were significant differences between the different seasons and between target organs. Moreover, two ways of ANOVA provided highly significant differences between organs and parameters at the same seasons. While, non-significant differences were found at the interactions between seasons and organs at the same parameters and between seasons and parameters at the same organs.

Section: Sodiumsupporting

confidence: 83%

Influences of some pollutants on water quality of El-Bagouria Canal at Kafr El-Zayat Region, El-Gharbia Governorate, Egypt

Shehata

Egypt. J. of Aquatic Biolo. and Fish.

2016

“…Em 50% das amostragens realizadas, valores de OD estiveram abaixo de 5,0 mg L -1 para os dois locais monitorados o que, segundo alguns autores, pode ser atribuído à presença de matéria orgânica biodegradável e à utilização de OD por micro e macro fauna, resultando no consumo de OD e, portanto, em concentrações menores. 24,25 Os corpos aquáticos monitorados apresentaram condições que possibilitam a presença de vida aquática, porém houve casos em que a concentração de oxigênio dissolvido foi elevada, como é o caso do CAPRP (concentração de OD de 11,1 mg L -1 para Julho/07, por exemplo), que recebe efluentes domésticos clandestinamente a montante do local de coleta e, jusante do PRP. Concentrações de OD acima da saturação podem ser indicativas de início de processo de eutrofização, fenômeno no qual o processo de fotossíntese realizado pelas algas contribui para a elevação das concentrações de OD na água, bem como a ocorrência de temperaturas da água ao redor de 21 o C no período do inverno.…”

Section: Perfil Temporal Mensalunclassified

Perfil espacial e temporal de poluentes nas águas da represa municipal de São José do Rio Preto, São Paulo, Brasil

Melo¹,

Moreira²,

Bisinoti³

2009

Quím. Nova

Cristóvão Colombo, 2265, 15054-000 São José do Rio Preto -SP, BrasilRecebido em 10/6/08; aceito em 9/2/09; publicado na web em 3/7/09 SEASONAL AND SPATIAL TREND OF POLLUTANTS IN THE WATERS OF THE SÃO JOSÉ DO RIO PRETO MUNICIPAL DAM, SÃO PAULO STATE, BRAZIL. In this manuscript, seasonal and spatial trends of water collected from two sampling places in the Preto River in the Turvo-Grande watershed were evaluated. Water samples were collected during June/07 to July/08 and parameters sulphate, total organic carbon, ammonia, conductivity, dissolved oxygen, temperature, dissolved total solids and nitrate were quantified. Seasonal trend indicated sanitary effluents as a point source of contamination in both sampling points. Vertical trends demonstrated that the Municipal Dam was not stratified and received a diffuse source of pollutants from flooding and agriculture runoffs. It was also verified that there is relatively fast ammonia consumption kinetics having a half-life time of 1.43 h which can explain the low ammonia concentrations found in these aquatic bodies.Keywords: Preto river; seasonal and spatial trends; pollutants. INTRODUÇÃOA poluição ambiental de corpos aquáticos de uma determinada região reflete o tipo de uso e ocupação do solo. A qualidade e a conservação dos mananciais tem se tornado primordial para o desenvolvimento econômico e social de um país, mais até do que da quantidade de água disponível. O simples monitoramento ambiental é importante e traz informação sobre a qualidade das águas no tocante à legislação vigente (Resolução Conama 357) e enquadramento do recurso hídrico em questão. 1 Porém, medidas para prevenção e controle da poluição são dependentes do conhecimento do comportamento dos poluentes nos corpos aquáticos. 2,3 A dinâmica dos poluentes é dependente das variações espaço-temporal. 1,[4][5][6][7] Segundo Ahipapthy e Puttaiah, 1 avaliar as características físico-químicas de corpos aquáticos ajuda a compreender as mudanças observadas ao longo do percurso do rio devido, principalmente, às descargas de efluentes industriais e domésticos e, consequentemente, a capacidade de autodepuração e transformação do corpo aquático. Comportamentos distintos têm sido observados por diversos autores em função do tipo de solo, clima e características físico-químicas dos recursos hídricos. 8,9 Isto se deve não somente às características já apresentadas, mas também a outros fatores como disponibilidade de luz, temperatura e micro-organismos que afetam as reações fotoquímicas e biológicas no ambiente. 4,[10][11][12][13][14] Vale ressaltar a importância da distinção e identificação de fontes pontuais e difusas num cenário de degradação ambiental, as quais fornecerão informações necessárias para ações de gerenciamento ambiental e políticas públicas no tocante à preservação e manutenção da qualidade do manancial em questão. As fontes pontuais são mais previsíveis e, uma vez identificadas em um monitoramento ambiental, são mais fáceis de serem gerenciadas, como é o caso do lançamento de efluentes industriais e do...

“…Thus the single parameter of TDS can give a reasonable good indication of a number of parameters [14].…”

Section: Discussionmentioning

confidence: 99%

Physico-Chemical Analysis Of Water Samples Near Industrial Area, Kurinjipadi Block, Cuddalore District, Tamilnadu, India

2018

IJCTR

: The present investigation was carried out to assess the impacts of industrial activities on the ground water quality in and around SIPCOT Industrial complex in Cuddalore District (kurinjipadi block).The quality was assessed in terms of physico-chemical parameters. Ground water and municipal water samples were collected from seven (7) villages in kurinjipadi block during December 2010-February 2011. The physico-chemical parameters such as pH, Electrical Conductivity (EC), total dissolved solids (TDS), turbidity, dissolved oxygen (DO), total alkalinity (TA), total hardness (TH), Calcium (Ca 2+ ), magnesium (Mg 2+ ), Sodium (Na + ), Potassium (K + ), Chloride (Cl -), Nitrate (NO 3 -), Sulphate (SO 4 2-) were analyzed (APHA, 1998) to know the present status of the groundwater quality. The results were compared with standards prescribed by ISI 10500-91. It was found that the underground water was contaminated at few sampling sites. The remaining sampling sites shows physicochemical parameters within the water quality standards and the quality of water is good and it is fit for drinking purpose. The correlation coefficients were calculated for water quality assessment.