Health Implications of PAH Release from Coated Cast Iron Drinking Water Distribution Systems in the Netherlands

http://dx.doi.org/10.1289/ehp.1205220



Table 3. Coating characteristics of cast iron pipe segments.
Coating characteristic No. of pipes Percent of pipesa
aFor “coated” and “undertermined,” values are percentages of all samples (n = 120); for all others, values are percentages of coated pipes only (n = 104).
Coated Yes 104 87
Undetermined 16 13
Coating type Bitumen 60 58
Coal tar 21 20
Unidentified 23 22
Thickness Thin 70 67
Thick 34 33
Coverage (%) 0 9 9
> 0 to 50 36 35
> 50 to < 100 27 27
100 32 31