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Table 1 Distribution of maternal PM10 and NO2 exposure levels for different prenatal and postnatal periods

From: Air pollution exposure estimation using dispersion modelling and continuous monitoring data in a prospective birth cohort study in the Netherlands

 

N

Minimum

25th percentile

Mean

Median

75th percentile

Maximum

PM 10 exposure (μg/m 3 )

       

Prenatal

       

   First trimester

7894

22.0

27.7

30.6

30.5

33.4

43.1

   Second trimester

8311

21.3

26.2

30.1

29.5

33.3

45.6

   Third trimester

8438

22.0

26.6

29.8

29.8

32.0

43.5

   Total pregnancy

7877

23.1

27.7

30.2

29.9

32.8

39.9

Postnatal

       

   Month 0-6

8381

22.7

27.3

29.5

29.3

31.4

39.9

   Month 7-12

8082

22.8

27.0

28.8

28.7

30.5

39.3

NO 2 exposure (μg/m 3 )

       

Prenatal

       

   First trimester

7893

21.4

36.9

40.2

40.6

43.5

58.5

   Second trimester

8310

20.2

35.2

39.6

40.5

43.9

59.7

   Third trimester

8434

21.3

35.4

39.3

39.9

43.2

58.8

   Total pregnancy

7889

25.3

37.0

39.7

39.5

42.2

56.9

Postnatal

       

   Month 0-6

8389

24.2

36.3

39.4

39.5

42.5

59.3

   Month 7-12

8082

24.1

35.5

38.6

38.6

41.6

58.0

  1. Air pollution exposure was estimated for different prenatal and postnatal periods: first trimester (0-18 weeks), second trimester (18-25 weeks), third trimester (25 weeks-delivery), total pregnancy, month 0-6 postnatally, and month 7-12 postnatally