Green Valley Site Information
 

Sampler height and location:
This sampler inlet is 4.6 meters above the ground of the Pima County Government Center. The elevation is 2910 feet and there is 360 degrees of unrestricted air flow.

Land Use:
This site is situated in a residential / commercial area 100 meters west of La Canada (2006 ADT of 15,200) and 0.5 kilometers west of Interstate 19 (2006 ADT of 30,000). Open pit copper mines and tailings ponds are located four kilometers to the west of the community.

Comments:
This site is fifty kilometers south of Downtown Tucson in the retirement community of Green Valley. PM10 monitoring commenced in September 1989 at the established TSP site there. ASARCO and Cypress-Sierrita operate several open pit mines and tailings ponds just west of the community. The monitoring objective is to monitor the impact of this potentially significant source of airborne particulates. The monitor was relocated in February 2001, approximately 1 kilometer north of the original Esperanza site, to the Pima County Government Center at 601 N. La Canada Drive. The move was necessitated by warranty requirements of the new roof at the original site and a request by the property management firm to vacate. The new site is considered a continuation of the original site. PM10 levels were below the health standards in the years 1989 through 2005.

Site Information for PM2.5

Site Information for Ozone

 

Pollutant Data - for Quality Review Purposes Only

Green Valley Area
( Most current polled data, hour ending at 5:00 on 9/9/2010) 

Detailed monitoring site information