| ชื่อเรื่อง | : | Effect of mining rejects on the nutrient chemistry of Mandovi Estuary, Goa |
| นักวิจัย | : | DeSousa, S.N. |
| คำค้น | : | water analysis , nutrients (mineral) , nitrates , phosphates , silicates , mine tailings , resuspended sediments , adsorption , chemical oceanography , pollution effects |
| หน่วยงาน | : | National Institute Of Oceanography (NIO), India |
| ผู้ร่วมงาน | : | - |
| ปีพิมพ์ | : | 2542 |
| อ้างอิง | : | Indian Journal of Marine Sciences, Vol.28; 355-359p. , http://drs.nio.org/drs/handle/2264/1734 |
| ที่มา | : | - |
| ความเชี่ยวชาญ | : | - |
| ความสัมพันธ์ | : | - |
| ขอบเขตของเนื้อหา | : | - |
| บทคัดย่อ/คำอธิบาย | : | Nutrient chemistry in Mandovi Estuary, Goa, India during premonsoon in affected by the discharge of mining rejects. Concentrations of nitrate and phosphate, in general, show low levels in this season (nitate 0.3-3.3 mu M, phosphate 0.11-0.56 mu M) while silicate show wide range in concentration (1.25-130 mu M). Elevated concentrations of nitrate (6.1-9.1 mu M) associated with reduced levels of phosphate (less than 0.1 mu M) and silicate (50-60 mu M) in the mid-estuary, near the discharge point of mining rejects, suggest that the suspended sediments derived from the mining rejects adsorb phosphate and silicate, and remove them from the water column while the mining rejects act as a source of nitrate to the estuary. Large quantities (10 tonnes/month) of ammonium nitrate used in explosives for blasting the hard rock at the mining site seem to be the source of the source of nitrate in mining rejects. |
| บรรณานุกรม | : |
DeSousa, S.N. . (2542). Effect of mining rejects on the nutrient chemistry of Mandovi Estuary, Goa.
: National Institute Of Oceanography (NIO), India. DeSousa, S.N. . 2542. "Effect of mining rejects on the nutrient chemistry of Mandovi Estuary, Goa".
: National Institute Of Oceanography (NIO), India. DeSousa, S.N. . "Effect of mining rejects on the nutrient chemistry of Mandovi Estuary, Goa."
: National Institute Of Oceanography (NIO), India, 2542. Print. DeSousa, S.N. . Effect of mining rejects on the nutrient chemistry of Mandovi Estuary, Goa. : National Institute Of Oceanography (NIO), India; 2542.
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