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RSIC Hungry Valley Air Monitoring Data by Site by Date (all parameters)

Use this form to retrieve hourly data collected at RSIC Hungry Valley Air Monitoring. Although this is the most current data, it is not considered official until it has been certified by the technical staff. This information is updated hourly.

This web page provides the most current hourly averaged data available. Our convention for time-tagging data is the beginning of each hour. For example, values shown for the noon hour are based on measurements taken from noon to 1:00 p.m. The noon average will not be calculated until after 1:00 p.m. The noon average will then be available on our external server from 1:15 p.m. to 1:30 p.m. This results in an apparent one-hour time lag in the data. We also present our data in Local Standard Time for each measuring site. During Daylight Savings, this introduces another apparent one-hour time lag in the data.

Use the controls below to select a different date or time format and to control cell highlighting based on measured PM-2.5 or PM-10 levels. 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.

Select a different site
Month:Day:Year:Time Format:
PM-2.5 Highlights:  Moderate   Unhealthy for Sensitives   Unhealthy   Very Unhealthy   Hazardous  
PM-10 Highlights:  Moderate   Unhealthy for Sensitives   Unhealthy   Very Unhealthy   Hazardous  
Green underline for validated data

The table below contains hourly averages for all the pollutants and meteorological conditions measured at RSIC Hungry Valley Air Monitoring for Saturday, November 18, 2017. All times shown are in PST.

Parameter MeasuredMorning Parameter Measured POC
Mid 1:00 2:00
Wind Speed 2.82.2 FEW Wind Speed 1
Resultant Wind Speed 2.72.1 FEW Resultant Wind Speed 1
Resultant Wind Direction 225242 FEW Resultant Wind Direction 1
Maximum Wind Gust 4.53.7 FEW Maximum Wind Gust 1
Std. Dev. Wind Direction 1913 FEW Std. Dev. Wind Direction 1
Outdoor Temperature 17.216.5 FEW Outdoor Temperature 1
Dew Point Temperature 13.913.0 FEW Dew Point Temperature 1
Relative Humidity 86.885.8 FEW Relative Humidity 1
Solar Radiation 0.0000.000 FEW Solar Radiation 1
Barometric Pressure 852.8852.7 FEW Barometric Pressure 1
Mean Sea-Level Pressure 1020.51020.3 FEW Mean Sea-Level Pressure 1
Precipitation 0.000.00 FEW Precipitation 1
PM-10 (Standard Conditions) PM PM PM PM-10 (Standard Conditions) 1 R
PM-2.5 (Local Conditions) 984.91984.89 FEW PM-2.5 (Local Conditions) 1
Parameter MeasuredMid 1:00 2:00Parameter Measured POC
Morning
Maximum values for each parameter are bold within the table. Minimum values are bold italic.
 R - Data from this instrument meets EPA quality assurance criteria for regulatory purposes.

Key to PM-2.5 (Local Conditions) Acceptable Highlight Colors:

The color-coding of the hourly PM-2.5 data is based on a 1-hour to 24-hour projection. This projection is based on statistics compiled over several years comparing the daily maximum 1-hour average to the midnight-to-midnight 24-hour average.
The table below shows the levels, color-coding, and suggested actions for both the 1-hour projection and the actual 24-hour standard.

Color Air Quality Rating 1-Hour
Average
(µg/m³)
24-Hour
Average
(µg/m³)
Actions to take
Hazardous 250.5+ 250.5+
  • Serious aggravation of heart or lung disease and premature mortality in persons with cardiopulmonary disease and the elderly; serious risk of respiratory effects in general population.
  • Serious aggravation of heart or lung disease and premature mortality in persons with cardiopulmonary disease and the elderly; serious risk of respiratory effects in general population.

PLEASE NOTE: This data has not been verified by the TREX and may change. This is the most current data, but it is not official until it has been certified by our technical staff. Data is collected from TREX ambient monitoring sites and may include data collected by other outside agencies. This data is updated hourly. All times shown are in local standard time unless otherwise indicated.