It is established that the first place after the general incidence of the population in the Northern Development Region (NDR) is district Sângerei, being about 49 percent higher than the average for the region. Bălți municipality is in second place, exceeding by 45.2% the average value registered in the NDR. On the third place in the general incidence of the population of the NDR, is district Glodeni, being 30.8% higher than NDR. The dynamics of respiratory diseases is in an increasing trend from 896.5 cases in 2010 to 1535.5 in 2019, and there is an increase of about 71.3 percentage points. Respiratory system diseases rank first, with 1194 cases per 10 thousand inhabitants and constituted 44.7% of the total number of diseases. The highest number of diseases of the respiratory system in the NDR were registered in Balti municipality, district Glodeni, Sângerei, etc. High incidence value for district Sângerei, mun. Bălți, district Glodeni et al. it is explained by the quality of the environmental components (emissions to the atmosphere) in the given localities. The dependence of the general incidence of the population (especially after the diseases of the respiratory system) on the degree of environmental pollution (emissions into the air) in the given locality is demonstrated.Diseases of the cardiovascular system remain in second place, with an average value of 194.0 / 10,000 cases and constitute 7.3 percent of the total number. This group of diseases has an increasing character, from 173.0 / 10,000 in 2010 to (239.0 / 10,000 cases by 2017), then there is a decrease to 157.7 cases in 2019.