13.07.2015 Views

City Heights CO and PM2.5 Data Analysis Report - Air Pollution ...

City Heights CO and PM2.5 Data Analysis Report - Air Pollution ...

City Heights CO and PM2.5 Data Analysis Report - Air Pollution ...

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

The District operates five BAM units at San Diego County monitoring stations in order to getreal-time, hourly <strong>PM2.5</strong> data (BAM units are for more permanent operations). The dailyaverage <strong>PM2.5</strong> from the various BAM <strong>and</strong> EBAM units is shown in Figure 16. This graphshows that elevated concentrations of <strong>PM2.5</strong> occur simultaneously throughout the County,indicating periods of high atmospheric stability (usually associated with nights with clearskies, dry air, <strong>and</strong> light winds), or higher than normal emissions (such as New Year’s Eve<strong>and</strong> New Year’s Day). Daily graphs of BAM <strong>and</strong> EBAM data are available in Appendix B.San Diego County BAM <strong>and</strong> EBAM <strong>Data</strong>:December 16, 2008, through February 3, 200980.0<strong>PM2.5</strong> (µg/m3)70.060.050.040.030.020.010.00.0ALPDTNECAESCCMPCESWMS24-Hr St<strong>and</strong>ardDateFigure 16.Graph showing the 24-hour <strong>PM2.5</strong> concentrations collected by the BAMs <strong>and</strong>the EBAMs in San Diego County from December 16, 2008, through February3, 2009. The BAM units were located at Alpine (ALP), Downtown San Diego(DTN), El Cajon (ECA), Escondido (ESC), <strong>and</strong> Camp Pendleton (CMP), <strong>and</strong>the EBAM units were located at Central Elementary School (CES) <strong>and</strong>Wilson Middle School (WMS).- 23 -

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!