Air pollutions and the frequency of respiratory and allergic manifestations in megacity. 1 G.P.Orlova, 2 K.B. Fridman, 2 T.E.Lim, 1 S.V. Demidova. 1 Scientific Research Institute for Pulmonology I.P.Pavlov’s State Medical University ,
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Air pollutions and the frequency of respiratory and allergic manifestations in megacity.1 G.P.Orlova, 2K.B. Fridman, 2 T.E.Lim, 1 S.V. Demidova.
1 Scientific Research Institute for Pulmonology I.P.Pavlov’s State Medical University,
2 Federal State Institute of Public Health “Centre of Saint-Petersburg hygiene and epidemiology”.
Step 1.Our previous study (2009) revealed that two thirds of St-Petersburg districts (1st group) were characterized by prevalence of CB over A morbidity (CB/A morbidity index was above 1,3), that corresponded to the mean city value, whereas this index was equal or less than 1,3 in other districts (2nd group) - almost equal morbidity of CB and A.
Annual concentration average of the basic polluting substances in limit permissible concentration portions (according to socially-hygienic monitoring)
Questioned interrogationof the adult population
* - p<0,05 between 1 и 2 groups
NOx/ NO2 *