NYC-WTC_000209329

NYC 9/11 Public Portal Document

P.08/l£^ SEP-18-2001 10:13 NYSDEC PLBPNY CO SPILLS

Ttie pesticide results, listed in Table I,! are calculated by using the following forninia;

Cc - (P^XAuXvQ (RFavcXviXwXD)

where. C. = Concentration of analyte G^g/kg) OF = Dilution Factor A.. - Area or peak height V, - Volume of sample (mL) = Average response factor V, - Volume of extrtel, injected (pL) w = Weight of santplt (g) D = Decimal percent solids

Response Factor ca.cuiition

The response factor for each specific analyte is caluulaied using ilic peak area (peak height) fratn the continuing culibMtion check ns follows;

Au RF « -------------------- total pg injected

where;

A„ ' Afta Of peak litighl

and

RFI + , . * BFn RFavs ----------------- - 11 where;

n = number of samples,

Revisioo 3/9/00

CITY_21MC100_006537216

NYC-WTC_000209331