species add up to the non-blank mass.

(4) Species fractions are calculated for each quarter for each species. In the example below, a

fraction of non-blank mass is calculated for each of the seven species. Blank mass remains fixed

22.5 0 .5 22.0 38.6 5.0 23.6 4.1 10.5 15.0 3.2

The percentages in table 5.3 above are the relative composition for the 3rd quarter of 2003 and

2004. It is assumed that these species fractions are representative of the 2000-2004 time

period46.

(5) The weighted quarterly average FRM design values are used as the baseline FRM value for

each monitoring site (2000-2004). The species fractions from the 2003/2004 speciation data

were used to estimate the species concentrations for the baseline year FRM PM2.5 data. The

percentage compositions for 2003/2004 are applied to the quarterly weighted average design

values as shown in table 5.4. In the example below, the weighted average design value for the

3rd quarter for the site from table 5.1 is 20.30 ug/m3. This leads to the following concentrations

of PM2.5 species:

 

 

n651 - n652 - n653 - n654 - n655 - n656 - n657 - n658 - n659 - n660 - n661 - n662 - n663 - n664 - n665 - n666 - n667 - n668 - n669 - n670 - n671 - n672 - n673 - n674 - n675 - n676 - n677 - n678 - n679 - n680 - n681 - n682 - n683 - n684 - n685 - n686 - n687 - n688 - n689 - n690 - n691 - n692 - n693 - n694 - n695 - n696 - n697 - n698 - n699 - n700

 

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