When a PPB
tumor is detected at its earliest stage, as in this case, and is treated by surgery and sometimes chemotherapy, patients have a survival rate of more than 90-percent.
Toulene, the chemical that may carry the biggest risk to wildlife, has a threshold level of 120 ppb
for wildlife - or about 5 times the sample amount taken Friday.
MOVE FORWARD, MOVE BACK In 1977, the standard was revised upward to 125 ppb
because the single study upon which the original 85 ppb
standard was based was discredited by the EPA.
5 times that in fish from lakes containing at least 18 ppb
If the state adopts 6 ppb
as a standard, it could go into effect next year.
inducing gonadal abnormalities and hermaphroditism in leopard frogs (Rana pipiens) and African clawed frogs (Xenopus laevis) (Cart et al.
Silver results range from 39 ppb
Ag to greater than 100,000 ppb
In other words, an action level of 15 parts per billion doesn't mean that water with 14 ppb
or 13 ppb
of lead is safe.
The new standard arbitrarily reduced the permissible level of arsenic to 10 ppb
If passed, the acceptable level of atrazine could rise from three parts per billion (ppb
) to as high as 12 ppb
Rinks that use propane-powered machines averaged 248 ppb
, compared with 54 ppb
for rinks with gas-powered machines, and 30 ppb
for electric machines.
PINK SHEETS:HPGI), a gold exploration, property acquisition and mining development company, is pleased to announce initial stream sediment sampling results at its South American property in Suriname, which point to a number of gold anomalies with individual sample values up to 25,000 ppb