This slide presentation explores this question: given the week-to-week, day-to-day, and
even hour-to-hour variation in disinfection byproduct (DBP) levels at
the point-of-entry (POE) and in the distribution system, what
is the meaning of a grab sample taken at 3-
month intervals with respect to public health
exposure, and why is this the basis for
compliance monitoring?
The presentation argues that, given this variability, our compliance
monitoring paradigm must change. It presents information that supports the statement that spatial and temporal variability in DBP
levels must be taken into consideration
when developing a reliable compliance
monitoring program.
These spatial and temporal variations
must also be taken into consideration
when assessing exposure in
epidemiological studies. The presentation also states that regulations should address individual
DBP species. It outlines information which argues that a better assessment of public exposure to
HAAs requires the measurement of all nine
bromine- and chlorine-containing HAAs; better
protection of public health requires the
regulation of all 9 HAAs. Includes figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 450 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 43 |
| Published : | 03/01/2007 |
