The fly ash influenced the heavy metal status of the soil and the seeds of sunflower. A case study.
In this study, four cultivars of sunflower (Helianthus annuus) were grown in the sandy loam soil, supplemented with graded (v/v) quantity (0, 20, 40, 60, 80, 100%) of the fly ash, released by the combustion of the coal from the thermal power plant. The presence of fly ash in the soil increased its porosity, water holding capacity, pH, E.C., C.E.C., the content of sulphate, carbonate, bicarbonate, chloride, phosphorus, potassium, calcium and various trace elements. However, in the seeds, except Fe, Pb, Mn and Zn, and other heavy metals remained untraced up to 40% of the fly ash, above that their quantity slightly increased but the values are very much under the permissible limits.
Department of Botany, Aligarh Muslim University, Aligarh-202 002, UP, India.
Shazia
S
Siddiqui
A
A
Ahmad
S
S
Hayat
D002244:Carbon; D060729:Coal Ash; D006368:Helianthus; D006863:Hydrogen-Ion Concentration; D017745:Incineration; D007220:Industrial Waste; D019216:Metals, Heavy / Q000032:analysis* / Q000737:chemistry; D010316:Particle Size; D052638:Particulate Matter; D016062:Porosity; D011210:Power Plants; D012037:Refuse Disposal; D012639:Seeds / Q000737:chemistry* / Q000378:metabolism; D012987:Soil / Q000032:analysis*; D014131:Trace Elements / Q000032:analysis; D014867:Water / Q000737:chemistry
D060729:Coal Ash; D007220:Industrial Waste; D019216:Metals, Heavy; D052638:Particulate Matter; D012987:Soil; D014131:Trace Elements; D014867:Water; D002244:Carbon