Air Quality Maps Air Quality Index Ozone Ozone 8-hr Wind Speed Air Temperature Water Quality Hourly Averages By Parameter Daily Summary By Site (Map Select) Daily Summary By Site Monthly Summary By Site (Map Select) Monthly Summary By Site Yearly Summary By Site (Map Select) Yearly Summary By Site Additional Info Air Quality Index Yearly Air Quality Index Summary Current Hourly Averages Current Values Data by Parameter . . . Ozone . . . Ozone Hourly Averages Current Ozone Levels Ozone Summary 8-hr Ozone Attainment Ozone 8-hr 4 Highest Ozone 8-hr Monthly Summary Ozone 8-hr High Value Days Ozone 1-hr High Value Days Peak 1-hr Ozone PM-10 . . . Standard Conditions Local Conditions PM-2.5 . . . Local Conditions Total Atmospheric Local Conditions Raw Data Local Conditions (Acceptable) Meteorology . . . Barometric Pressure Precipitation Relative Humidity Solar Radiation Temperature Wind Direction Wind Gusts Wind Speed Any Parameter Daily Summary by Site (map select) Daily Summary by Site Monthly Summary Report (map select) Monthly Summary Report Yearly Summary Report (map select) Yearly Summary Report Hourly Value Plots Plot Hourly Values By Parameter-All Sites TREX Members The Alabama-Coushatta Tribe of Texas Big Pine Band of Owens Valley Paiute Shoshone Indians of the Big Pine Reservatione Bishop Paiute Tribe Confederated Salish & Kootenai Tribe Confederated Tribes of the Coos - Lower Umpqua - Siuslaw Indians Fort Independence Paiute Tribe Fort McDowell Yavapai Nation Hoopa Valley Tribe Lone Pine Paiute-Shoshone Reservation Passamaquoddy Tribe at Pleasant Point Penobscot Indian Nation Pyramid Lake Paiute Tribe St. Regis Mohawk Tribe The Confederated Tribes of Warm Springs Tribal Air Monitoring Support Center Walker River Paiute Tribe IPS MeteoStar General Information Site Information Site Photos Monitors Site Summary Metro Areas Water Site Information Water Site Photos Water Monitors Contact Us

PM-10 (Local Conditions) Hourly Averages

Particulate matter is anything that is suspended in the air. It can be caused by natural phenomena or come from man-made sources. In high enough concentrations, particulates can aggravate existing respiratory problems or even trigger new ones.

Coarse particulates (PM-10) come from sources such as windblown dust from the desert or agricultural fields (sand storms) and dust kicked up on unpaved roads by vehicle traffic. PM-10 data is the near real-time measurement of particulate matter 10 microns or less in size from the surrounding air. This measurement is made at local conditions, meaning it is not corrected for temperature or pressure.

Use the controls below to select a different date or parameter. Click on the Generate Report button once you have made your selections.Click on the Plot Data button once the tabular report has been generated to open a separate window containing data plots.