Water supply has become insufficient for the rapidly rising population in Pakistan. As in other parts of Pakistan, coastal villagers also become helpless to use ground water for drinking and daily consumption, due to ...Water supply has become insufficient for the rapidly rising population in Pakistan. As in other parts of Pakistan, coastal villagers also become helpless to use ground water for drinking and daily consumption, due to their need and their not knowing about the quality of water. A number of patients arrived to Karachi hospitals, suffering from a strange disease and this study has been done to find the exact cause of this disease by assuming that arsenic contaminated drinking water may be one of the possibilities. Maximum permissible limit (MRL) of arsenic in drinking water of Pakistan has been calculated by analysis of 50 samples of supply water as 0.05 mg/l. It was observed that most of the residents of Ibrahim Hyderi, Rehri, Chashma, Mubarak, Fagheer Muhammad and Gul Hasan Goths (villages) of the coastal belt of the Karachi city were suffering from melanosis, leuco-melanosis, keratosis, hyperkeratosis, dorsum, non-pitting oedema, gangrene and skin cancer that might be due to arsenic contamination in drinking water. Studied subjects were seriously affected due to paralyzing lower limbs, arms and other body parts in the coastal belt of Karachi, which was observed to be the most prominent health hazards of arsenic. The majority of victims were children. This community problem demands proper addressing and extensive research for improving the quality of life of these villagers.展开更多
The present study explores the chemical and economic aspects of pesticide contamination of marinefishery in relation to nutritional values Marine Pollution of pesticides poses signify can tricks to the environment and...The present study explores the chemical and economic aspects of pesticide contamination of marinefishery in relation to nutritional values Marine Pollution of pesticides poses signify can tricks to the environment and non-target organisms ranging from beneficial marine micro organisms, to insects, seaweeds, fish, and mangroves at Karachi Coast. Fish typically contains good quality nutrition, particularly oily fish has maximum commercial values but contamination of fishery is the major problem caused by pesticides and PCBs pollution resulting in serious health hazards. A number of fish and shell fish samples were analyzed for determination of pesticides contamination due to marine environment pollution. It was found that most pesticides pose risk to humans, fishery or the environment because they are designed to kill or adversely affect living organisms. Quantitative analysis of pesticides and PCBs was performed using GC equipped with ECD and the FPD for organophosphorus and GC-MS. The arithmetic mean concentrations of each pesticide were calculated and statistical evaluation was done. Relationship of protein and pesticides level has been determined to determine impact of pesticide on protein content of each type of fish. There is a considerable difference found in the pesticides contents of each type of fishery, which reveals that environmental pollution status that attributes towards pesticides distribution.展开更多
文摘Water supply has become insufficient for the rapidly rising population in Pakistan. As in other parts of Pakistan, coastal villagers also become helpless to use ground water for drinking and daily consumption, due to their need and their not knowing about the quality of water. A number of patients arrived to Karachi hospitals, suffering from a strange disease and this study has been done to find the exact cause of this disease by assuming that arsenic contaminated drinking water may be one of the possibilities. Maximum permissible limit (MRL) of arsenic in drinking water of Pakistan has been calculated by analysis of 50 samples of supply water as 0.05 mg/l. It was observed that most of the residents of Ibrahim Hyderi, Rehri, Chashma, Mubarak, Fagheer Muhammad and Gul Hasan Goths (villages) of the coastal belt of the Karachi city were suffering from melanosis, leuco-melanosis, keratosis, hyperkeratosis, dorsum, non-pitting oedema, gangrene and skin cancer that might be due to arsenic contamination in drinking water. Studied subjects were seriously affected due to paralyzing lower limbs, arms and other body parts in the coastal belt of Karachi, which was observed to be the most prominent health hazards of arsenic. The majority of victims were children. This community problem demands proper addressing and extensive research for improving the quality of life of these villagers.
文摘The present study explores the chemical and economic aspects of pesticide contamination of marinefishery in relation to nutritional values Marine Pollution of pesticides poses signify can tricks to the environment and non-target organisms ranging from beneficial marine micro organisms, to insects, seaweeds, fish, and mangroves at Karachi Coast. Fish typically contains good quality nutrition, particularly oily fish has maximum commercial values but contamination of fishery is the major problem caused by pesticides and PCBs pollution resulting in serious health hazards. A number of fish and shell fish samples were analyzed for determination of pesticides contamination due to marine environment pollution. It was found that most pesticides pose risk to humans, fishery or the environment because they are designed to kill or adversely affect living organisms. Quantitative analysis of pesticides and PCBs was performed using GC equipped with ECD and the FPD for organophosphorus and GC-MS. The arithmetic mean concentrations of each pesticide were calculated and statistical evaluation was done. Relationship of protein and pesticides level has been determined to determine impact of pesticide on protein content of each type of fish. There is a considerable difference found in the pesticides contents of each type of fishery, which reveals that environmental pollution status that attributes towards pesticides distribution.
