NYC-WTC_000203209

NYC 9/11 Public Portal Document

Acid Gases Air Sampling Analysis Results Collection Date: Night of 9/20/01

Compound Queens Bronx Manhattan Brooklyn Brooklyn Staten Island Broadway Ave 138'^ St & Central Park N. Berry St & Atlantic Ave & Bay St & &3r‘St 3"* Ave & Lenox North 11* St Smith St Victory Blvd

Acetic Acid <5.0 PPM <5.0 PPM <5.0 PPM <5.0 PPM <5.0 PPM <5.0 PPM

Nitric Acid <1.0 PPM <1.0 PPM <1.0 PPM <1.0 PPM <1.0 PPM <1.0 PPM

Sulphuric Acid <5.0 PPM <5.0 PPM <5.0 PPM <5.0 PPM <5.0 PPM <5.0 PPM

Hydrochloric Add <10.C PPM <10.0 PPM <10.0 PPM <10.0 PPM <10.0 PPM <10.0 PPM

Formic Acid <1.0 PPM <1.0 PPM <1.0 PPM <1.0 PPM <1.0 PPM <1.0 PPM

Chromic Acid <0.1CPPM <0.10 PPM <0.10 PPM <0.10 PPM <0.10 PPM <0.10 PPM

Acid Test <10.0 PPM <10.0 PPM <10.0 PPM <10.0 PPM <10.0 PPM <10.0 PPM

C29

CITY_21MC100_003070553

NYC-WTC_000203209