What is the general situation with the ISSUE?                               

             The analysis of annual mean concentrations of the main controlled pollutants over the last 15 years (1986-2000) showed that the situation concerning atmospheric air pollution in Bishkek remained unfavourable. On the whole, the tendency to pollution reduction was not revealed. 

        The concentration of dust (suspended substances), in 2000 approximately 5 times as big as the maximum allowable concentration is practically on the same level.  There is some tendency to the increase of carbon oxide (CO) concentration which, beginning since 1991, fluctuates within the limits of 1-2 maximum allowable concentrations. The decrease of mean annual concentrations can be noted for nitric oxides (NO₂, NO) which are constantly exceeding the maximum allowable concentration. The concentration of ammonia (NH₃) after the rise in 1992-1996 (up to 2 maximum allowable concentrations) returned to the level of 1988-1991 which conforms to the maximum allowable concentration. The greatest anxiety was caused by the steady growth in the atmosphere of the concentration of formaldehyde (CH₂O), which in recent years has exceeded  the  maximum    allowable   concentration 7 times, and        benz(a)pyrene ( C₂₀H₁₂) exceeding the maximum allowable concentration more than 30 times.                                                           The most unfavourable is the situation related to the content of sulphur dioxide (SO₂) in the atmosphere. It has been steadily decreasing since 1986 and in 2000 fell to 0.12 maximum allowable concentrations. Changes in the concentration of other combustion products (carbon oxide, nitric oxides, benz(a)pyrene, formaldehyde) as the main source of emissions into atmosphere is the drawback of the control methods used.

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