Syeda, Aban Asrar (1996) STUDIES ON THE POLLUTANTS OF QUETTA VALLEY AND THEIR METABOLIC STRESS ON POPULATION. PhD thesis, University of Balochistan, Quetta.
The work reported here has been carried out to explore pollutants of Quetta Valley in air, food and water. 1600 samples of Almond, pistachio and Walnuts and peanuts were collected seasonally from different parts of Quetta city and examined qualitatively and quantitatively for the presence of Mycotoxin. Peanuts were found to be highly contaminated by saprophytic fungi Aspergillus flavus infection followed by pistachio, Almond and Walnuts. Level of Aflatoxin in Peanuts was found to be highest among four. Aflatoxin level in Peanuts was 80 ppb, Pistachio 70 ppb, Almond 25 ppb and Walnut 20 ppb. Fungal infections and subsequent aflatoxin production was high during summer and autumn seasons due to high temperature and moisture contents. Correlation of aflatoxln with liver cancer was discussed. The degree of air pollution was determined on heavy traffic areas using road side trees as an indicator. The leaves of Cupressus sp, Pinus, Fraxinus, excelsior, Rubinoa pseudoaccasia were collected and analyzed for micro, macro and heavy metals concentration. The detection and estimation of these elements was done by using atomic absortion spectrophoto meter. Significantly high lead, Nickel Manganese cadmium, Iron, and Zinc contents were found. These are highly toxic for all living systems and cause adverse effects directly or indirectly on human health. The common source of Lead, cadmium Nickel, Zinc, Iron and Manganese on tree leaves is motor vehicles. The heavy metal concentration increases with increasing distance from the road. This study showed that maximum pollution is on Jinnah Road to access the disease caused by pollution, 16 diseases of minor and major characteristics selected. A questionnaire was distributed to 1000 randomly selected shopkeepers and residents of heavy traffic fifteen roads of Quetta city. These were 95.1% respondents resulted in a 95.1% return. The significance of lead as a health hazard in the Quetta City was calculated. The regression equations were developed and generalized for the larger population using the data in hand. It was observed that blood pressure, E.N.T, Fatigue gasteo intestinal diseases and cancer are highly correlated with lead. There is a linear relationship between impact of hazardous pollutants on diverse profession and the number of patients of various diseases, x test is Used for determining the significance of pollutants on patients of various diseases, thereby rejecting our null hypothesis. Water samples, collected seasonally from different municipal water supplies of Quetta City were analyzed for their Chemical and microbiological characteristics Calcium, Magnesium, Sodium, Potassium, Carbonate, Bicarbonate, Chloride, Sulphate, Nitrate, Boron dissolved solids, pH conductivity total Cations, total anions, Chromium, Lead, Nickel, Cadmium, Iron and Zinc, were determined quantitatively. The presence of indicator bacteria in potable water was found to be an important and interesting topic. Most of the work done in this regard was based on the enumeration of indicator bacteria in the water samples. In environment getting polluted by human and animal waste. Coliform and fecal coliform populations were found abundantly fecal streptococci were also isolated. This situation further intensifies the threat of the hazardous of fecal pollution.
|Item Type:||Thesis (PhD)|
|Uncontrolled Keywords:||Pollutants, Quetta, Metabolic stress, Urbanization, Sewage, Sanitation, Domestic Refuse, Disposal, Air Pollution, Lead, Cadmium, Nickel, Aflatoxin, Food Pollution, Aflatoxin,|
|Subjects:||Physical Sciences (f) > Chemistry(f2) > Biochemistry(f2.1)|
|Deposited By:||Mr Ghulam Murtaza|
|Deposited On:||17 Jun 2006|
|Last Modified:||04 Oct 2007 21:00|
Repository Staff Only: item control page