Introduction and Aims of the Study: Air pollution is defined as detoriation of the natural composition of the atmosphere by contamination of indoor or outdoor air by either chemical, physical or biological agent. Air pollution is the most important environmental risk factor for health.

Material and Method: The type of this study is case control. The births that took place in 2016 in Edirne and Keşan districts have been compared using PM10 and SO2 values according to low birth weight, preterm birth and stillbirth conditions which are defined as poor perinatal outcomes. This study has reached 206 cases and 427 controls and as a whole 633 participants.

Results:

During the perinatal period which is around two years over all as far as this study is concerned; the limit values of PM10 and SO2 have been exceeded.

During this period, average PM10 level in Edirne was 49.81 µg/m3; and average SO2 level was 21.17 µg/m3.

During the same period, average PM10 level in Keşan was 70.95 µg/m3; and averege SO2 level was 261.10 µg/m3.

Residing in Keşan compared to residing in Edirne is 1.6 times more risky in terms of poor perinatal outcomes (95% CI (1,086-2,401)) and preterm being(95% CI (1,061-2,442)).

Conclusions and Suggestions:

Air pollution is an important public health issue causing perinatal morbidity and mortality.

Air pollution should be prevented via national and international policies.

Mothers should be protected from the dangerous effects of air pollution before conception and during pregnancy.

Environmental history should be questioned during pregnancy and perinatal health evaluations.

Calibrations should be provided in order to reach more accurate measurements regarding air pollution.

In order for individual exposure to air pollution to be measured more accurately, power of representation of air quality measurement stations should be increased.

Urgent precautions should be taken for Edirne and Keşan districts.

Physicians should follow the air quality values of the area of which they provide service.

Keywords: Air pollution, Edirne, Keşan, Perinatal outcomes, SO2, PM10