Project Title: Ysleta del Sur Pueblo Air Toxics Monitoring Project

Project Description:

The Ysleta del Sur Pueblo (YDSP) Environmental Management Office is conducting an air toxics sampling study in El Paso, Texas. The purpose of this study is to provide ambient air quality data that will be used to determine YDSP Tribal community exposure at two Reservation subdivisions located approximately five miles apart. Sampling operations consist of two phases using a different type of collection media for each phase. Sub-ambient passive canister sampling (Phase 1), and passive organic vapor monitors (OVMs) (Phase 2) are the two types of collection media that are being used for the project.

During Phase 1 of the project, samples are being collected using 6-Liter stainless steel canisters at one location representative of one of the Reservation subdivisions. This process involves an evacuated canister drawing ambient air through a flow-metering device, such that the sampling event is approximately 24 hours duration. Samples are being taken every sixth day over the course of one year, with duplicate samples being collected every third sampling event.

Phase 2 of the project consists of sampling ambient air using OVMs at ten separate locations; five representative of each housing subdivision. One of these sites is collocated at the canister (Phase 1) site. This process involves deployment of Passive Sampling Devices (PSDs) over a 72 hour period every eighteenth day. A total of ten sampling events have been scheduled, with five samples being collected during the summer season, and the remaining five being collected during the winter season.

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Project Title: Ysleta del Sur Pueblo Air Toxics Monitoring Project

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