Fig. 1From: Long-term exposure to road traffic noise and stroke incidence: a Danish Nurse Cohort studySpatial variability of annual mean exposure levels at residences of Danish Nurse Cohort participants in the year before cohort enrolment (1993/1999): (left-to-right, top-to-bottom) Lden, PM2.5, PM10, NO2, and NOxBack to article page