Wednesday, November 20, 2019
Environmental Assessment Case Study Example | Topics and Well Written Essays - 500 words
Environmental Assessment - Case Study Example Surflan or oryzalin as itÃ¢â¬â¢s commonly referred, is a pre-emergent herbicide used to control turf grass, itÃ¢â¬â¢s selected for use during dry seasons and applied at the onset of rain to kill turf grass. It lasts for 2 to 8 months upon application and provides efficient control for annual grass and weeds with broad leaves. This refers to the way in which the herbicide suppresses the growth or kills a weed. Surflan acts by inhibiting plant growth when the recommended amount of 1.5 ounces is applied per 1000feet. The plant absorbs the solution, and then translocates it to the active sites in the plant cells where it stops various biomedical reactions thereby killing the plant. It has been noted that long exposure to Surflan herbicides may increase oneÃ¢â¬â¢s chances of contracting certain types of cancer. Among the people at higher risk are farmers and gardeners, technical salespersons and manufacturerÃ¢â¬â¢s agents. The herbicide has been known for cancers of large intestines, prostrate, nose, pancreas, breast, lungs and ovary. It has also been linked to leukemia, skin rashes and ParkinsonÃ¢â¬â¢s disease. Despite its effectiveness in controlling turf grass and other stubborn weeds, Surflan herbicides are among those that pose great danger to the environment. This is so because it is less volatile and has fewer tendencies to leaching. Volatile here means the easiness with which the solution can change from its liquid to gas state through the process of evaporation. Leaching on the other hand refers to loss of soluble nutrients form a carrier as a result of rain. This indicates that Surflan, when applied, stays on the top of the soil for long and can be swept by water to rivers where it causes undue hazard to fish and other animals that consume and live in that water (Johnson & Hall, 2002). In places where the farm fields are across the street and playing grounds, Surflan has effects on a number of individuals including the street and play ground users.