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Информирование о состоянии окружающей среды на территории Республики Казахстан и оценка эффективности мероприятий в области охраны окружающей среды 

Экологическая ситуация Северной части Каспийского моря

Информирование о состоянии окружающей среды на территории Республики Казахстан и оценка эффективности мероприятий в области охраны окружающей среды 

статья КазНУ Вестник

отчет Департамента "Зеленой экономики"

информирование о состоянии окружающей среды на территории Республики Казахстан и оценка эффективности мероприятий в области охраны окружающей среды 

Caspian Water Quality Monitoring and Action Plan for Areas of Pollution Concern

August 2009

Caspian Water Quality Monitoring and Action Plan for Areas of Pollution Concern

August 2009

Produced by Manana Kurtrubadze for the SOE Report 2018

Results of monitoring for Caspecontrol.

Provided for the SOE 2018

Toxicity tests are commonly used as a tool to determine the standards of water quality for chemicals and to discover appropriate organisms as bioindicators in toxicological studies, and also could be used as an essential tool for evaluation of the pollutant effects in aquatic ecosystems. The aim of the present study was to evaluate the sensitivity of two Caspian fish species, Caspian trout as an endangered species and Caspian Kutum using the static acute toxicity in response to nonylphenol, which is widely discharged into the Caspian Sea environment.The fish were exposed to various concentrations of nonylphenol for 96 hours to determine the LC50. The experimental nonylphenol concentrations were consisted of five exposure groups for each species: 100, 150, 200, 250, and 300 μg/l for Caspian trout; 400, 800, 1200, 1600 and 2000 μg/l for Caspian Kutum, with a control group for each of them.Using probit analysis, the 96 h LC50 of nonylphenol to Caspian trout and Caspian Kutumwas determined to be 204.78 and 1262.36 μg/l, respectively. In addition, Caspian trout was approximately 6 times more sensitive than Caspian Kutum. Nonylphenol was reflected to be "highly toxic" to Caspian trout and "moderately toxic" to Caspian Kutum. The results could be considered in preparing plans for conservation and restocking management of Caspian Kutum and the endangered Caspian trout. 

Experts believe that the release of over one billion cubic meters of industrial, chemical and household wastewater into the Caspian Sea per annum has polluted the water, and reduced the level of oxygen jeopardizing over 400 aquatic species including sturgeons. Extraction and transportation of oil in the Sea are one of the pollution sources in the Seawater. Caspian Sea contains about 100,000 million barrels of oil. It also contains over 35,000 million cubic meter of flue gas. Daily extractions of crude oil and gas and transportation of them are the main pollution sources of the Caspian Sea. Many trucks for charring oil from ports along the Caspian Sea are considered as point and nonpoint sources along the seaboard. In addition, many ships, which are navigating in the Sea, are emitting pollution to the Sea. Many cities and industries surround the Caspian Sea. Pollution from these cities and industries enter the Caspian Sea either directly or through rivers. The purpose of this paper is to look at the benefits of environmental management strategies in pollution prevention such as waste minimization and clean technologies. This minimizes the environmental problems due to waste generation and eliminates the cost of treatment and disposal of the waste. The benefits of the environmental management program along the Caspian Sea will ensure the clean water and the better environment of the Sea.