This view organizes the other health risk pollutants by health indicator — the body system that a pollutant can harm. Each plot below covers one indicator and shows every pollutant that contributes to it, with the two AutoGC monitors side by side and a Total row combining them.
Each cell is the average level divided by the screening level for that pollutant. A value below 1.00x is below the screening level. A pollutant appears under every indicator it affects, so the same chemical can show up in more than one plot.
CHATTER analyzes air pollutants measured with automatic gas chromatograph (AutoGC) equipment. In Beaumont-Port-Arthur, there are only two AutoGC monitor sites that measure cancer risk pollutants analyzed by CHATTER: Beaumont-Downtown and Nederland 17th Street.
How to read this plot (click to expand)
Each plot is one health indicator — a body system such as the brain and nervous system or immune system. Within a plot, each row is a pollutant that can affect that body system, each column is a period of time, and the two blocks side by side are the two monitors. The bottom Total row adds the pollutants together.
The number in each square is the pollutant level divided by the screening level, written as a multiple with an “x.”
A clarifying example.In the Immune system plot, find Benzene at Nederland 17th Street in 2024. The square reads 0.022x — the average benzene level was about 2% of the screening level, well below it. Because benzene is the only pollutant listed under Immune system, the Total row reads the same.
Everything on this tab is currently below the screening level. The color scale does not begin to darken until 1.00x, and no value here comes close, so the grids appear in the palest shade.
For the general explanation of heat maps, see the Frequently Asked Questions.
