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Ozone
Ozone is a major element of urban smog. Ozone can limit the ability to take a deep breath, and it can cause coughing, throat irritation, and breathing discomfort. There is also evidence that ozone can lower resistance to respiratory disease, damage lung tissue, and aggravate chronic lung disease (such as asthma or bronchitis). To learn more about tropospheric ozone, the ozone layer, climate change and greenhouse gases, see the ozone page.

Ozone measurements are taken hourly at the UVM Proctor Maple Research Center in Underhill, VT and in southern Vermont at Bennington. AIRNOW from the US EPA provides more explanation for the numbers below.

Ozone in parts per billion at Proctor Maple Research Center, Underhill, VT

Running 24 hour average Ozone 20.29

Hourly averages for last 24 hours, most recent first
DateTimeOzone PPB
2005-08-3109:00:0020
2005-08-3108:00:0021
2005-08-3107:00:0030
2005-08-3106:00:0030
2005-08-3103:00:00
2005-08-3101:00:00
2005-08-3100:00:0022
2005-08-3023:00:0021
2005-08-3022:00:0016
2005-08-3021:00:0018
2005-08-3020:00:0022
2005-08-3019:00:0022
2005-08-3018:00:0027
2005-08-3017:00:0030
2005-08-3016:00:0027
2005-08-3015:00:0034
2005-08-3014:00:0036
2005-08-3013:00:0035
2005-08-3012:00:00
2005-08-3011:00:00
2005-08-3010:00:00
2005-08-3009:00:0026
2005-08-3008:00:0024
2005-08-3007:00:0026

Graph of Ozone from the Underhill datalogger (PPB) for last 30 days
Data are provided by Vermont Air Pollution Control Division, are not quality assured, and are subject to change.
Ozone in parts per billion at Bennington, VT

Running 24 hour average Ozone 21.96

Hourly averages for last 24 hours, most recent first
DateTimeOzone PPB
2005-08-3109:00:0021
2005-08-3108:00:0022
2005-08-3107:00:0023
2005-08-3106:00:0026
2005-08-3103:00:00
2005-08-3101:00:0025
2005-08-3100:00:0022
2005-08-3023:00:0016
2005-08-3022:00:0015
2005-08-3021:00:0015
2005-08-3020:00:0016
2005-08-3019:00:0013
2005-08-3018:00:0015
2005-08-3017:00:0027
2005-08-3016:00:0028
2005-08-3015:00:0027
2005-08-3014:00:0027
2005-08-3013:00:0025
2005-08-3012:00:0027
2005-08-3011:00:0033
2005-08-3010:00:0031
2005-08-3009:00:0032
2005-08-3008:00:0029
2005-08-3007:00:0012

Graph of Ozone from the Bennington datalogger (PPB) for last 30 days
Data are provided by Vermont Air Pollution Control Division, are not quality assured, and are subject to change.

Particulates (PM 2.5)
Particulate matter (PM) is a major component of "smog" that includes dust, dirt, soot, smoke and liquid droplets from sources such as factories, power plants, motor vehicles, construction activity, fires and naturally windblown dust. Fine particulates can affect breathing, aggravate existing respiratory and cardiovascular disease, alter the bodyıs defense systems and damage lung tissue. To learn more about particulates and air pollution, see the air page.

Measurements of particulates smaller than 2.5 microns (PM 2.5) are taken hourly from Main St. & So. Winooski parking lot, in Burlington, VT. Levels of PM 2.5 between 0-15.4 µg/m are generally considered "good" air quality, between 15.5-40.4 is "moderate" air quality, 40.5-65.4 is unhealthy for sensitive groups, and greater than 65.5 µg/m is unhealthy.

Particulates less than 2.5 microns collected hourly at the APCD monitoring trailer, located at the corner of So. Winooski Ave. and Main Street, Burlington, VT

Running 24 hour average Particulate 14.83 µg/m3 (from R&P TEOM Series 8500 with Filter Dynamic Measurement System [FDMS] with averaging done by datalogger)

Hourly averages for last 24 hours, most recent first
DateTimeParticulate µg/m3
2005-08-3109:00:005
2005-08-3108:00:003
2005-08-3107:00:002
2005-08-3106:00:006
2005-08-3103:00:00
2005-08-3101:00:0015
2005-08-3100:00:0013
2005-08-3023:00:0012
2005-08-3022:00:0013
2005-08-3021:00:0013
2005-08-3020:00:0016
2005-08-3019:00:0018
2005-08-3018:00:0019
2005-08-3017:00:0016
2005-08-3016:00:0015
2005-08-3015:00:0016
2005-08-3014:00:0022
2005-08-3013:00:0023
2005-08-3012:00:0022
2005-08-3011:00:0022
2005-08-3010:00:0022
2005-08-3009:00:0022
2005-08-3008:00:0021
2005-08-3007:00:0020

Graph of hourly averages of total particulate from the datalogger (ug/m3) for last 30 days
Data are provided by Vermont Air Pollution Control Division, are not quality assured, and are subject to change.

Acid Rain
Rain that falls at the UVM Proctor Maple Research Center in Underhill, VT is collected and its pH is tested. To learn more about the effects of acid rain, see the acid rain page.

pH of latest rainfall collected Proctor Maple Research Center, Underhill Center, VT

End Date

Precipitation End Time

Inches of precip

pH

2005-05-16

06:25:00

0.29

4.44

Ultraviolet Radiation (UV) Index

This number, from 1-10, tells us how strong the ultraviolet (UV) rays coming from the sun are, so we can take appropriate action to prevent negative effects of over-exposure. For more information see USEPA's "UV Index: What You Need to Know."

Today's UV Air Quality Index Forecast for Burlington

2


VALID MAY 15 2008 AT SOLAR NOON /APPROXIMATELY NOON LOCAL STANDARD TIME OR 100 PM LOCAL DAYLIGHT TIME/

Ozone Air Quality Index

An important indicator of air quality, particularly those who are sensitive to pollution such as asthmatics, the elderly, and those who exercise outdoors. For more information see the USEPA's explanation of the Ozone Air Quality Index.

Today's Ozone Air Quality Index Forecast

Note: Ozone monitoring and reporting is from May through September only. This site has moved. You will be redirected to http://www.airnow.gov/ in 5 seconds.

This site has moved. You will be redirected to http://www.airnow.gov/ in 5 seconds.

Burlington - Haze Cam Pollution Visibility Camera Network

Camnet is the Northeast's real-time air pollution visibility camera network. Real time webcam photos are available from Burlington, VT; Newark/NYC; Boston, MA; Acadia, ME; Mt. Washington, NH; and Hartford, CT.

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Ozone
--Monitoring data from Proctor Maple Research Center, Underhill, VT

Acid Rain
--Monitoring data from Proctor Maple Research Center, Underhill, VT

Ultraviolet Radiation (UV)
--Graph of Daily UV Index for Burlington: 1996, 1997, 1998

Other Sources

Pollen
Today's pollen forecast for Burlington, VT from Pollen.com

General
USEPA Envirofacts Warehouse: A single point of access to select EPA environmental data.
Scorecard.org: Access data for Chittenden County on Criteria Air Pollutants and Hazardous Air Pollutants