Study on ground water characteristics and the effects of discharged effluents from textile units at Karur District.
A study was made on the physico-chemical characteristics of water samples mixed with effluent discharged from textile industries at Chellandipalayam (Site--I), Senaparatti (Site--II) and Pasupathipalayam (Sites--III and IV) revealed the elevated levels of Ca, Mg, Na, Cr, K, Ni, Cu, Zn, CO3, SO4, NO3 and Cl- . The concentrations of these ions exceeded the limit prescribed by ISI. The increase in the concentrations of ions was revealed by higher values of electrical conductivity (EC). Water at these sites was found to be hard, brackish and unsuitable for drinking purpose. In all these sites, the seed germination of rice alone was significantly affected among the other crops tested. Irrigation of crops with ground water notably lowered the quantity of reserve food in rice, wheat (starch), and sugarcane (sugar), indicating the interference of their metabolic pathway by polluted ground water.
Kannan
V
V
PG and Research Department of Botany, National College, Tiruchirapalli 620 001, India. kannanmala@sify.com
Ramesh
R
R
Sasikumar
C
C
D002241:Carbohydrates / Q000032:analysis; D018556:Crops, Agricultural / Q000254:growth & development / Q000378:metabolism; D004553:Electric Conductivity; D018525:Germination / Q000187:drug effects*; D007194:India; D007220:Industrial Waste; D008670:Metals / Q000009:adverse effects / Q000032:analysis; D009566:Nitrates / Q000009:adverse effects / Q000032:analysis; D012275:Oryza / Q000254:growth & development / Q000378:metabolism; D027805:Phaseolus / Q000254:growth & development / Q000378:metabolism; D011506:Proteins / Q000032:analysis; D031786:Saccharum / Q000254:growth & development / Q000378:metabolism; D012639:Seeds / Q000187:drug effects / Q000254:growth & development; D013213:Starch / Q000032:analysis; D013431:Sulfates / Q000009:adverse effects / Q000032:analysis; D013783:Textile Industry; D014865:Waste Disposal, Fluid; D014874:Water Pollutants, Chemical / Q000009:adverse effects* / Q000032:analysis; D014881:Water Supply; D003313:Zea mays / Q000254:growth & development / Q000378:metabolism
D002241:Carbohydrates; D007220:Industrial Waste; D008670:Metals; D009566:Nitrates; D011506:Proteins; D013431:Sulfates; D014874:Water Pollutants, Chemical; D013213:Starch