Vital Caspian Graphics - Challenges Beyond Caviar
37
Imported problems
people, but contribute to the accumulation of greenhouse gases in the atmosphere, contributing in turn to observed trends in global warming.
The Volga, the main river flow- ing into the Caspian, brings polluted water from locations as far as 3,500 kilometres away. Nearly 45% of Russian industry and 50% of its agri- cultural production facilities are located in the vast river ba- sin. Inadequately treated waste water – among others from the entire Moscow urban area and industrial centres such as Eka- terinburg and Perm – spills into tributaries of the Volga. Any waste that does not silt up behind a dam or soak into the Volga estuary ends up in the Caspian. The situation at the mouth of the Kura-Araks River on the Apsheron Peninsula is similar, with a rising pollution load accumulating on the way through Georgia and Arme- nia. It then combines with the waste from two-thirds of Az- erbaijan’s industrial produc- tion and more than a third of its population. The wastewater treatment facilities serving the major urban areas of Baku and Sumgait are not up to the task, unable to cope with the rapidly growing population. Air quality has generally im- proved in recent years, mainly because industrial production dropped drastically since the collapse of the Soviet economic system. But increasing emis- sions from the expanding oil and gas sector, and a growing number of cars in cities, not only affect the health of local
The type and severity of pollution must be deduced from analysis of data from selected cases. They provide an indication of accumulated pollution. For example, traces of the pesticide DDT in fish tissue and seals lead to the conclusion that DDT may be still in use despite an international agreement to stop its application, with the risks it involves for animals and humans. Iran, Kazakhstan and Russia have signed the Convention on Persistent Organic Pollutants and Azerbaijan has adhered to it. The convention seeks to ban chemicals that are absorbed by fatty tissue and accumulate there, as is the case for DDT, enabling them to travel long distances. The drastically restricted use of DDT raises a new problem: the unused material is stockpiled without the necessary safety measures, and as such poses an additional health and environmental hazard.
The accumulation of pollution from all these different sources and the fact that several countries are involved makes it particularly difficult to manage.
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