The present work is a research study of 2,4-D and atrazine pesticides in three different soils (Agricultural, Garden and Barren) with variable organic matter, measured by a batch equilibrium technique. The effect of soil properties on pesticide sorption was also examined. The results showed that agricultural soil binds maximum atrazine and 2,4-D that may be due to high organic content of the soil.Sorption and binding of atrazine and 2,4-D to organic matter can occur as a result of hydrophobic bonding. pH 4 is found optimum for all soils and showed maximum pesticide adsorption.The present ...

This Book is compilation of experimental results of total metal concentration and speciation of different food field samples.Concentration of six elements(Cu,Cd,Cr,Ni,Pb,Zn) was determined experimentally after sequential extraction from soils of three crops (Cotton,Oat and Wheat),seven vegetables (Onion,Mustard,Cucumber,Carrot,Tinda,Pea and Garlic) and two fruits (Orange and Grapefruit) collected from different cities of Punjab, Pakistan.A wide variation in concentration of elements was found confirming species specific response to different elements. Chemical forms...