EURO-ECO 2008 Hanover 18 - 20 November 2008	Environmental and Engineering Aspects for sustainable living
	European Academy of Natural Sciences, Hanover European Scientific Society, Hanover University of Bremen, Bremen

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The impact of complex meteorological conditions of the city over the spatial size and the city air aerosol pollution concentration varies depending on geographical coordinated, time of the day and season.

The city aerosol is one of the basic factors determining the meteorological regime of the city. Distant ground monitoring allows us to obtain all necessary optic information about the city aerosol concentration field and its changeability in time on-the-fly.

Measurements of the transparency and angles dependence of the passing through solar radiation are made use of in the research to define the aerosol layer brightness contrast varieties bound with varieties of its spatial size foe accounting the impact of the city aerosol over the radiation balance and efficient albedo of the city territory.

Relative humidity of the air is a leading meteorological factor determining the aerosol parameters transformation. The impact of this factor defines the conditions of balance between the phase state of the aerosol particles and the environment, changes of the secondary aerosol formation rate and its removal from the atmosphere. The research aims to study the relative humidity impact and its varieties over the optic density, concentration and modal (average) size of the city aerosol and the angle characteristics of the aerosol dispersed light.

The aerosol particles spectral transformation structure is investigated on statistically provided optic data on the part of greater particles under simultaneous drop in their concentration. This effect is made use of to assess the aerosol fall-out intensiveness.

• The city air pollution is especially dangerous for weakening persons with cardiovascular and respiratory systems diseases.
• Symptoms of chronic poisoning are: the disturbance of normal behavior, also neuropsychology signs: fast weariness or fiel of continuous tired, sleepiness, or the other way, sleeplessness, apathy, weakening attention, forgetfulness, significantly change the mood. Among the city population this is become to increase: chronic bronchitis, asthma, allergy, cardiovascular disturbances, cancer.