Skip to main content

Table 2 Description of pollutants’ concentration (μg/m3) throughout pregnancy

From: Maternal exposure to ambient fine particulate matter and fetal growth in Shanghai, China

Pollutants Mean Percentiles Range
25 50 75
PM2.5 48.0 44.5 48.6 51.2 34.3~67.9
PM10 60.5 55.8 62.6 64.4 36.7~80.6
NO2 42.3 36.8 44.2 50.1 8.7~55.9
O3 67.5 63.1 66.8 73.3 0.7~87.1
SO2 16.5 14.2 17.4 18. 6 1.1~22.2
RHa 17.9 15.4 18.7 20.2 9.0~23.8
Tb 70.1 69.7 70.2 70.7 65.4~73.5
Ie (PM2.5) c 51.2 46.6 50.5 55.0 29.1~82.1
  1. aRelative humidity;
  2. bTemperature;
  3. cIndividual exposure, it was the average PM2.5 values of every gestational week between the first gestational week to the one week before the ultrasound measurement date
\