Nearly 99 percent of the samples collected tested at or below the 15 ppb federal action level
for lead, 95 percent met the bottled water standard of 5 ppb and lead was not detected in 81 percent of the samples collected.
Employers must assess the exposure of each employee at or above the action level
using the following options:
TABLE 1 Results From September-November 2012 Sampling Detection Level # of Wells Above MCL (a) 35 Above action level
(b) 10 Below action level
10 Nondetect 134 (a) MCL = maximum contaminant level (5 parts per billion [ppb]).
Provide exposure monitoring of employees who are or may reasonably be expected to be exposed to respirable crystalline silica at or above the Action Level
of 25 [micro]g/[m.
A new study weighs known bacterial antibiotic sensitivities against the backdrop of antibiotic concentrations measured in the environment and suggests that resistance in clinically relevant bacteria may not be kept in check by current risk assessment action levels
[EHP 120(8):1100-1106; Tello et alt.
Lines in that category will have to be replaced if the water system as a whole remains above the lead action level
The most recent round of testing, conducted in November and December 2005, would appear to indicate that the change is having a positive effect, with only 16% of samples exceeding the action level
A) First action level
, this means daily personal exposure of 85 dba
When your water utility sends you a letter saying that you don't need to worry because your water doesn't exceed the action level
for lead, that's often dangerously misleading," says Maas.
But even at the 200 Bq/m3 action level
, the lung cancer risk was shown to increase by a third.
FDCPMC has asked its member companies and others who have workplaces covered by the proposed standard to identify the activities included in the proposal, determine if the exposure levels laid out in the ruling are at or above the proposed action level
, and to comment on how the proposed rule will affect their business.
The extent of the area to be cleaned up will depend on what action level
regulators select for dioxin.