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Advisory based on mercury.
For information relating to biotoxins from harmful algal blooms (HABs) that may be found in California water bodies, see below.
Advisory based on mercury.
For information relating to biotoxins from harmful algal blooms (HABs) that may be found in California water bodies, see below.
Fish advisory Trinity River upstream of Trinity Lake in Trinity County.
Advisory based on mercury.
For information relating to biotoxins from harmful algal blooms (HABs) that may be found in California water bodies, see below.
Advisory based on mercury.
For information relating to biotoxins from harmful algal blooms (HABs) that may be found in California water bodies, see below.
Advisory based on mercury.
For information relating to biotoxins from harmful algal blooms (HABs) that may be found in California water bodies, see below.
Impervious surfaces impact the hydrology, water quality and aquatic and riparian habitat within a watershed. OEHHA has developed impervious surface coefficients useful in stormwater management runoff analyses, in watershed assessment as an indicator of watershed health, and in land use planning to identify areas of higher or lower imperviousness and opportunities to reduce impervious cover.
Comment period on the notice of intent to list the chemical, 4-Methylimidazole (CAS No. 822-36-6) as known to the State to cause cancer.
OEHHA intent to list 4-Methylimidazole (4-MEI) as known to the state to cause cancer.