Cherokee Nation will continue its PM2.5-10 fine particulate monitoring as part of ITEC’s PM2.5-10 Network Design and as a participant in the EPA’s National PM2.5 Monitoring initiative. PM2.5 ambient air monitoring is currently conducted at four sites; Cherokee Nation (3 sites), & the Zia Pueblo (NM). The PM10 monitoring is being conducted at the Santa Ana Pueblo (NM).

The ambient air monitoring measures PM2.5 concentrations using U.S. EPA designation RFPS-0498-118. Samples are collected once every six days in accordance with the EPA’s special purpose monitoring schedule. All samples are analyzed by Inter-Mountain Laboratories (IML), an EPA approved PM2.5 laboratory. The laboratory conducts laboratory and critical criteria data validation for data QA. The OES has primary responsibility for final data validation and reporting.

A contractor performs the independent quarterly audits for the ITEC sites: Cherokee (3 sites) Zia, and Santa Ana. An EPA contractor (Lockheed-Martin) also conducts performance audits (PEP) for 10% of the network samplers.

ITEC non-continuous 1 in 6 days PM2.5 FRM sampling is occurring at 4 tribal locations:

Tahlequah-2 (40-021-9002) Tahlequah Shelter
Pryor-1 (40-097-9014) Pryor Shelter
Newkirk-1 (40-071-9010) Newkirk Shelter
Zia-1 (35-043-9012) Zia New Mexico Police Station

ITEC non-continuous 1 in 6 days PM10 FRM sampling is occurring at 1 tribal location:

Santa Ana Pueblo-2 (35-043-9012) (Collocated Site)