Air Quality Alert
COC014-069-031-035-001-123-059-005-013-172200-
Broomfield-Larimer-Denver-Douglas-Adams-Weld-Jefferson-
Arapahoe-Boulder-
410 PM MDT Wed Jul 16 2025
...OZONE ACTION DAY ALERT FROM 400 PM WEDNESDAY UNTIL 400 PM
THURSDAY...
The Colorado Department of Public Health and Environment has
issued the following...
WHAT...Ozone Action Day Alert.
WHERE...Douglas, Jefferson, Denver, western Arapahoe, western
Adams, Broomfield, Boulder, Larimer, and Weld Counties
WHEN...400 PM Wednesday July 16 to 400 PM Thursday July 17
IMPACTS...Ozone Action Day Alert is now in effect for the Front
Range Urban Corridor. Ozone will remain in the Good to Moderate
range on Wednesday. Warming temperatures and light winds may allow
ozone to reach levels that are Unhealthy for Sensitive Groups on
Thursday. The highest concentrations are expected along the
western portions of the northern Front Range, from western Denver
northward to Fort Collins. For Colorado air quality conditions,
forecasts, and advisories, visit:
https://www.colorado.gov/airquality/colorado_summary.aspx If
possible, please help us reduce ozone pollution by limiting
driving gas and diesel-powered vehicles until at least 4 p.m.
Thursday, July 17, 2025. Colorado is also addressing ozone
pollution through state policies. For more information about
health impacts and how ozone pollution forms in Colorado, visit:
https://cdphe.colorado.gov/ozone- pollution-and-your-health
HEALTH INFORMATION...Increasing likelihood of respiratory symptoms
and breathing discomfort in active children and adults and people
with lung disease, such as asthma. Active children and adults, and
people with lung disease, such as asthma, should reduce prolonged
or heavy outdoor exertion.
$$
COC077-113-045-085-091-097-029-051-037-171500-
Mesa-San Miguel-Garfield-Montrose-Ouray-Pitkin-Delta-
Gunnison-Eagle-
410 PM MDT Wed Jul 16 2025
...AIR QUALITY HEALTH ADVISORY FOR WILDFIRE SMOKE FROM 800 AM
WEDNESDAY UNTIL 900 AM THURSDAY...
The Colorado Department of Public Health and Environment has
issued the following...
WHAT...Air Quality Health Advisory for Wildfire Smoke.
WHERE...Mesa, Garfield, Eagle, Pitkin, Lake, Delta, Gunnison,
Chaffee, Montrose, San Miguel and Ouray Counties. Locations
include, but are not limited to Grand Junction, Glenwood Springs,
Eagle, Vail, Aspen, Leadville, Delta, Gunnison, Buena Vista,
Salida, Montrose, Nucla, Telluride and Ouray.
WHEN...800 AM Wednesday July 16 to 900 AM Thursday July 17
IMPACTS...Multiple wildfires will produce periods of moderate to
heavy smoke across the advisory area through early Thursday
morning. The heaviest smoke impacts will likely be in close
proximity to the South Rim fire in eastern Montrose County, the
Sowbelly Fire and Turner Gulch fires in southern Mesa County, and
areas directly downwind of the Deer Creek fire in Montrose and San
Miguel Counties. Thunderstorms are possible near the fires on
Wednesday, and may produce gusty, erratic winds that can send
smoke in any direction.
HEALTH INFORMATION...Public Health Recommendations: If smoke is
thick or becomes thick in your neighborhood you may want to remain
indoors. This is especially true for those with heart disease,
respiratory illnesses, the very young, and older adults. Consider
limiting outdoor activity when moderate to heavy smoke is present.
Consider relocating temporarily if smoke is present indoors and is
making you ill. If visibility is less than 5 miles in smoke in
your neighborhood, smoke has reached levels that are unhealthy.
$$
COC065-015-171500-
Lake-Chaffee-
410 PM MDT Wed Jul 16 2025
...AIR QUALITY HEALTH ADVISORY FOR WILDFIRE SMOKE FROM 800 AM
WEDNESDAY UNTIL 900 AM THURSDAY...
The Colorado Department of Public Health and Environment has
issued the following...
WHAT...Air Quality Health Advisory for Wildfire Smoke.
WHERE...Mesa, Garfield, Eagle, Pitkin, Lake, Delta, Gunnison,
Chaffee, Montrose, San Miguel and Ouray Counties. Locations
include, but are not limited to Grand Junction, Glenwood Springs,
Eagle, Vail, Aspen, Leadville, Delta, Gunnison, Buena Vista,
Salida, Montrose, Nucla, Telluride and Ouray.
WHEN...800 AM Wednesday July 16 to 900 AM Thursday July 17
IMPACTS...Multiple wildfires will produce periods of moderate to
heavy smoke across the advisory area through early Thursday
morning. The heaviest smoke impacts will likely be in close
proximity to the South Rim fire in eastern Montrose County, the
Sowbelly Fire and Turner Gulch fires in southern Mesa County, and
areas directly downwind of the Deer Creek fire in Montrose and San
Miguel Counties. Thunderstorms are possible near the fires on
Wednesday, and may produce gusty, erratic winds that can send
smoke in any direction.
HEALTH INFORMATION...Public Health Recommendations: If smoke is
thick or becomes thick in your neighborhood you may want to remain
indoors. This is especially true for those with heart disease,
respiratory illnesses, the very young, and older adults. Consider
limiting outdoor activity when moderate to heavy smoke is present.
Consider relocating temporarily if smoke is present indoors and is
making you ill. If visibility is less than 5 miles in smoke in
your neighborhood, smoke has reached levels that are unhealthy.
$$
ORC031-171700-
Jefferson-
Including the cities of Madras, Warm Springs, and Culver
1253 PM PDT Wed Jul 16 2025
...AIR QUALITY ADVISORY IN EFFECT UNTIL 10 AM PDT THURSDAY...
Oregon Department of Environmental Quality has issued an Air Quality
Advisory...in effect until 10 AM PDT Thursday.
A Smoke Air Quality Advisory has been issued. Wildfires burning in
the region combined with forecasted conditions will cause air
quality to reach unhealthy levels.
Pollutants in smoke can cause burning eyes, runny nose, aggravate
heart and lung diseases, and aggravate other serious health
problems. Limit outdoor activities and keep children indoors if it
is smoky. Please follow medical advice if you have a heart or lung
condition.
For additional information...please visit the Web site at
http://www.oregon.gov/DEQ
$$
NYZ069>075-078>081-176>179-170300-
Rockland-Northern Westchester-Southern Westchester-
New York (Manhattan)-Bronx-Richmond (Staten Island)-Kings (Brooklyn)-
Northwest Suffolk-Northeast Suffolk-Southwest Suffolk-
Southeast Suffolk-Northern Queens-Northern Nassau-Southern Queens-
Southern Nassau-
348 PM EDT Wed Jul 16 2025
...AIR QUALITY ALERT IN EFFECT UNTIL 11 PM EDT THIS EVENING...
The New York State Department of Environmental Conservation has
issued an Air Quality Health Advisory for the following counties:
New York, Bronx, Kings, Queens, Richmond, Nassau, Suffolk,
Westchester, and Rockland,
until 11 PM EDT this evening.
Air quality levels in outdoor air are predicted to be greater than
an Air Quality Index value of 100 for the pollutant of Ground Level
Ozone. The Air Quality Index, or AQI, was created as an easy way to
correlate levels of different pollutants to one scale. The higher
the AQI value, the greater the health concern.
When pollution levels are elevated, the New York State Department of
Health recommends that individuals consider limiting strenuous
outdoor physical activity to reduce the risk of adverse health
effects. People who may be especially sensitive to the effects of
elevated levels of pollutants include the very young, and those with
preexisting respiratory problems such as asthma or heart disease.
Those with symptoms should consider consulting their personal
physician.
A toll free air quality hotline has been established so New York
residents can stay informed on the air quality situation. The toll
free number is 1 800 5 3 5, 1 3 4 5.
$$
NJZ002-004-006-103>108-170300-
Western Passaic-Eastern Passaic-Hudson-Western Bergen-Eastern Bergen-
Western Essex-Eastern Essex-Western Union-Eastern Union-
348 PM EDT Wed Jul 16 2025
...AIR QUALITY ALERT IN EFFECT UNTIL 11 PM EDT THIS EVENING...
The New Jersey Department of Environmental Protection has issued an
Air Quality Action Day for the following counties:
Bergen, Passaic, Hudson, Essex, and Union,
until 11 PM EDT this evening.
An Air Quality Action Day means that Ground Level Ozone within the
region may approach or exceed unhealthy standards.
For additional information, please visit the New Jersey Department
of Environmental Protection Web site at https://dep.nj.gov/airmon
$$
CTZ005-170300-
Northern Fairfield-
348 PM EDT Wed Jul 16 2025
...AIR QUALITY ALERT IN EFFECT UNTIL 11 PM EDT THIS EVENING...
The Connecticut Department of Energy and Environmental Protection
has issued an Air Quality Action Day for the following counties:
Fairfield,
until 11 PM EDT this evening.
An Air Quality Action Day means that Ground Level Ozone within the
region may approach or exceed unhealthy standards. For additional
information, please visit the Connecticut Department of Energy and
Environmental Protection Web site at http://www.ct.gov/deep/aqi
$$
CTZ010-170300-
Southern New Haven-
348 PM EDT Wed Jul 16 2025
...AIR QUALITY ALERT IN EFFECT FROM 11 AM TO 11 PM EDT THURSDAY...
The Connecticut Department of Energy and Environmental Protection
has issued an Air Quality Action Day for the following counties:
Southern New Haven,
from 11 AM to 11 PM EDT Thursday.
An Air Quality Action Day means that Ground Level Ozone within the
region may approach or exceed unhealthy standards. For additional
information, please visit the Connecticut Department of Energy and
Environmental Protection Web site at http://www.ct.gov/deep/aqi
$$
CTZ009-170300-
Southern Fairfield-
348 PM EDT Wed Jul 16 2025
...AIR QUALITY ALERT IN EFFECT UNTIL 11 PM EDT THIS EVENING...
...AIR QUALITY ALERT IN EFFECT FROM 11 AM TO 11 PM EDT THURSDAY...
The Connecticut Department of Energy and Environmental Protection
has issued an Air Quality Action Day for the following counties:
Southern Fairfield,
until 11 PM EDT this evening, and from 11 AM EDT until 11 PM EDT
Thursday.
An Air Quality Action Day means that Ground Level Ozone within the
region may approach or exceed unhealthy standards. For additional
information, please visit the Connecticut Department of Energy and
Environmental Protection Web site at http://www.ct.gov/deep/aqi
$$
ORC035-037-172200-
Klamath-Lake-
Including the cities of Altamont, Olene, Klamath Falls, Midland,
Adel, Lakeview, New Pine Creek, Valley Falls, and Fort Rock
1104 AM PDT Wed Jul 16 2025
...AIR QUALITY ALERT IN EFFECT UNTIL 10 AM PDT THURSDAY...
Oregon Department of Environmental Quality has issued an Air
Quality Advisory...in effect until 10 AM PDT Thursday.
The Oregon Department of Environmental Quality issued an air quality
advisory for Klamath County. Check current air quality conditions
and advisories on DEQs Air Quality Index or by downloading the
OregonAIR on your app on your smartphone.
Many county health and local air agencies have also issued wood
burning restrictions limiting the use of wood stoves, fireplaces and
outdoor burning. There are often exceptions for those who use wood
exclusively to heat their homes and those with limited income. Check
with your local heath or air agency for current restrictions.
People can take the following precautions to protect their health:
- Follow local burn restrictions to prevent deteriorating air
quality.
- Avoid strenuous outdoor activity during periods of poor air quality.
- People with heart or lung problems and young children are
especially vulnerable. These people should stay indoors while smoke
levels are high.
- Use certified High Efficiency Particulate Air (HEPA) filters in
indoor heating, ventilation, cooling and air purification systems.
- Avoid using wood-burning stoves and other sources of indoor smoke
if possible.
DEQs color-coded Air Quality Index provides current air quality
conditions and ranks air quality as follows: Green is good. Yellow is
moderate. Orange is unhealthy for sensitive groups such as children,
the elderly, pregnant women and those with respiratory conditions.
Red is unhealthy for everyone. Purple is very unhealthy for all
groups. Maroon is hazardous.
Pollutants in smoke can cause burning eyes, runny nose, aggravate
heart and lung diseases, and aggravate other serious health
problems. Limit outdoor activities and keep children indoors if it
is smoky. Please follow medical advice if you have a heart or lung
condition.
For additional information...please visit the web site at
https://oregonsmoke.org
$$
MEZ001>006-010-011-031-032-170300-
Northwest Aroostook-Northeast Aroostook-Northern Somerset-
Northern Piscataquis-Northern Penobscot-Southeast Aroostook-
Central Piscataquis-Central Penobscot-Southern Piscataquis-
Northern Washington-
Including the cities of Allagash, Clayton Lake, Madawaska,
Fort Kent, Frenchville, Presque Isle, Caribou, Van Buren, Mars Hill,
Ashland, Baker Lake, Billy-Jack Depot, Baxter St Park,
Chamberlain Lake, Churchill Dam, Mount Katahdin, Millinocket,
East Millinocket, Patten, Medway, Houlton, Hodgdon, Sherman,
Smyrna Mills, Greenville, Monson, Blanchard, Lincoln, Howland,
Springfield, Dover-Foxcroft, Milo, Guilford, Danforth, Vanceboro,
and Topsfield
951 AM EDT Wed Jul 16 2025
...AIR QUALITY ALERT IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...
The Maine Department of Environmental Protection`s Bureau of Air
Quality has issued an Air Quality Alert for particle pollution until
midnight EDT tonight.
Particle pollution levels are expected to rise into the Unhealthy
for Sensitive Groups range on Tuesday. Values are already in the USG
range this morning. Smoke is currently expected to not move out of
Maine until Thursday, though this denser portion of the plume should
move out by Wednesday evening. In addition, particle pollution
levels are expected to be moderate for the remainder of the state
while ozone level are expected in the moderate range for the Maine
coastal regions.
The Maine Department of Environmental Protection recommends that
individuals consider limiting strenuous outdoor physical activity to
reduce the risk of adverse health effects. People who may be
especially sensitive to the effects of elevated levels of pollutants
include the very young, the elderly, those with pre-existing
respiratory problems such as asthma, those with heart disease and
anyone who is working hard outdoors. But if you experience symptoms
such as shortness of breath, coughing, throat irritation or an
uncomfortable sensation in your chest please consider limiting the
intensity and duration of your outdoor activities.
A toll free air quality hotline has been established so Maine
residents can stay informed on the air quality situations. The toll
free number is: 1-800-223-1196.
Additionally the Maine Department of Environmental Protection has
the air quality forecast available on the web at
www.maine.gov/dep/air/aqforecast.
$$
NJZ008>010-012-015-170400-
Morris-Hunterdon-Somerset-Middlesex-Mercer-
Including the cities of Morristown, Flemington, Somerville,
New Brunswick, and Trenton
913 AM EDT Wed Jul 16 2025
...AIR QUALITY ALERT IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...
The New Jersey Department of Environmental Protection has issued a
Code Orange Air Quality Action Day for Ground Level Ozone, until
midnight EDT tonight.
An Air Quality Advisory means that air quality within the region may
approach or exceed unhealthy standards. For more information on
current and forecast concentrations of ground-level ozone and fine
particulates, visit www.airnow.gov or www.state.nj.us/dep/airmon/ or
call the New Jersey Bureau of Air Monitoring at 609-292-0138
$$
NYZ062-170300-
Sullivan-
Including the city of Monticello
206 AM EDT Wed Jul 16 2025
...AIR QUALITY ALERT IN EFFECT FROM 11 AM THIS MORNING TO 11 PM EDT
THIS EVENING...
The New York State Department of Environmental Conservation at
Albany has issued a Air Quality Health Advisory for Ground Level
Ozone from 11 AM this morning to 11 PM EDT this evening.
Air quality levels in outdoor air are predicted to be greater than
an air quality index value of 100 for Ground Level Ozone. The air
quality index...or AQI...was created as an easy way to correlate
levels of different pollutants to one scale. The higher the AQI
value, the greater the health concern.
When pollution levels are elevated...the New York State Department
of Health recommends that individuals consider limiting strenuous
outdoor physical activity to reduce the risk of adverse health
effects. People who may be especially sensitive to the effects of
elevated levels of pollutants include the very young and those with
pre existing respiratory problems such as asthma or heart disease.
Those with symptoms should consider consulting their personal
physician.
For additional information, please visit the New York State
Department of Environmental Conservation website at,
https://on.ny.gov/nyaqi, or call the Air Quality Hotline at
800-535-1345.
$$
NYZ063>066-170300-
Western Ulster-Eastern Ulster-Western Dutchess-Eastern Dutchess-
Including the cities of Ellenville, Woodstock, West Hurley,
West Shokan, Kerhonkson, Napanoch, Sundown, Kingston, New Paltz,
Poughkeepsie, Beacon, Arlington, Pawling, Wingdale, Dover Plains,
Millbrook, Stanfordville, Pine Plains, and Amenia
1219 AM EDT Wed Jul 16 2025
...AIR QUALITY ALERT IN EFFECT FROM 11 AM THIS MORNING TO 11 PM EDT
THIS EVENING...
The New York State Department of Environmental Conservation at
Albany has issued a Air Quality Health Advisory for Ground Level
Ozone, from 11 AM this morning to 11 PM EDT this evening.
Air quality levels in outdoor air are predicted to be greater than
an air quality index value of 100 for Ground Level Ozone. The air
quality index, or AQI, was created as an easy way to correlate
levels of different pollutants to one scale. The higher the AQI
value, the greater the health concern.
When pollution levels are elevated, the New York State Department of
Health recommends that individuals consider limiting strenuous
outdoor physical activity to reduce the risk of adverse health
effects. People who may be especially sensitive to the effects of
elevated levels of pollutants include the very young and those with
pre existing respiratory problems such as asthma or heart disease.
Those with symptoms should consider consulting their personal
physician.
For additional information, please visit the New York State
Department of Environmental Conservation website at,
https://on.ny.gov/nyaqi, or call the Air Quality Hotline at 800-535-
1345.
$$
CTZ001-013-170300-
Northern Litchfield-Southern Litchfield-
Including the cities of Torrington, Oakville, Gaylordsville,
New Milford, Terryville, and Thomaston
1219 AM EDT Wed Jul 16 2025
...AIR QUALITY ALERT IN EFFECT FROM 11 AM THIS MORNING TO 11 PM EDT
THIS EVENING...
The Connecticut Department of Environmental Protection has issued a
Air Quality Action Day for Ground Level Ozone, from 11 AM this
morning to 11 PM EDT this evening.
An Air Quality Action Day means that Ground Level Ozone
concentrations within the region may approach or exceed unhealthy
standards. For additional information, please visit the Connecticut
Air Quality Web site at http://www.ct.gov/deep/aqi
$$
ILZ005-006-012-013-020-021-103>108-170500-
McHenry-Lake IL-Kane-DuPage-Kendall-Grundy-Northern Cook-
Central Cook-Southern Cook-Northern Will-Southern Will-Eastern Will-
Including the cities of Crystal Lake, Algonquin, McHenry, Woodstock,
Waukegan, Buffalo Grove, Mundelein, Gurnee, Aurora, Elgin,
Naperville, Wheaton, Downers Grove, Lombard, Carol Stream, Oswego,
Yorkville, Plano, Morris, Coal City, Minooka, Evanston, Des Plaines,
Schaumburg, Palatine, Northbrook, Chicago, Cicero, Oak Lawn,
Oak Park, La Grange, Calumet City, Oak Forest, Lemont, Orland Park,
Park Forest, Joliet, Bolingbrook, Plainfield, Mokena, Channahon,
Manhattan, Wilmington, Crete, Peotone, and Beecher
1037 PM CDT Tue Jul 15 2025
...AIR QUALITY ALERT IN EFFECT UNTIL MIDNIGHT CDT WEDNESDAY NIGHT...
The Illinois Environmental Protection Agency has issued an Air
Pollution Action Day for Wednesday July 16th for the greater Chicago
metropolitan area through Wednesday night.
A Chicago Area "Air Pollution Action Day" is declared when weather
conditions are such that widespread ozone and or particulate levels
are expected to be at or above the Unhealthy for Sensitive Groups
(UGS) category of the Air Quality Index (AQI) for multiple days.
Ozone is expected to be the primary pollutant of concern.
Active children and adults, especially people with pulmonary or
respiratory disease such as asthma, should limit prolonged outdoor
activity.
Area residents are urged to reduce pollution levels. Air quality
forecasts, current air quality, and tips on how you can reduce your
emissions can be found at www.airnow.gov.
Media contact...Illinois EPA.
$$
INZ001-002-010-011-170500-
Lake IN-Porter-Newton-Jasper-
Including the cities of Gary, Hammond, Merrillville, Portage,
Valparaiso, Chesterton, Roselawn, Kentland, Morocco, Rensselaer,
and DeMotte
1037 PM CDT Tue Jul 15 2025
...AIR QUALITY ALERT IN EFFECT UNTIL MIDNIGHT CDT WEDNESDAY NIGHT...
An Air Quality Action Day has been forecast for Northwest Indiana
for elevated ozone levels and is in effect until midnight CDT
Wednesday night.
Ozone Levels are expected to be at unhealthy levels for sensitive
groups. For additional information...please visit the IDEM SMOG
Watch web site at www.SmogWatch.IN.gov or the EPA AIRNOW web site at
www.airnow.gov and click on Indiana.
$$
MAZ008>011-170315-
Western Hampshire MA-Western Hampden MA-Eastern Hampshire MA-
Eastern Hampden MA-
Including the cities of Chesterfield, Blandford, Amherst,
Northampton, and Springfield
346 PM EDT Tue Jul 15 2025
...AIR QUALITY ALERT IN EFFECT FROM 11 AM TO 11 PM EDT WEDNESDAY...
The Massachusetts Department of Environmental Protection has issued
an Air Quality Alert for Ground Level Ozone, from 11 AM to 11 PM EDT
Wednesday.
An Air Quality Alert means that Ground Level Ozone concentrations
within the region may approach or exceed levels that are Unhealthy
for Sensitive Groups.
Air is unhealthy for sensitive children and adults, such as those
with asthma, lung or heart disease, and older adults. Sensitive
children and adults should limit prolonged outdoor activity.
For additional information, please visit the Massachusetts
Department of Environmental Protection website at:
https://mass.gov/orgs/massachusetts-department-of-environmental-
protection
$$
For the latest updates...please visit our webpage at
www.weather.gov/boston
You can follow us on Facebook at
www.facebook.com/NWSBoston
You can follow us on Twitter at
@NWSBoston
MIZ078-177-277-170530-
Cass MI-Northern Berrien-Southern Berrien-
Including the cities of Dowagiac, Cassopolis, Edwardsburg,
Marcellus, Benton Harbor, St. Joseph, Paw Paw Lake, Niles,
New Buffalo, Stevensville, and Berrien Springs
126 PM EDT Tue Jul 15 2025
...AIR QUALITY ADVISORY IN EFFECT THROUGH WEDNESDAY JULY 16th...
The Michigan Department of Environment, Great Lakes, and Energy
(EGLE) has declared an Air Quality Advisory for Tuesday July 15 and
Wednesday July 16, for elevated levels of ozone and fine particulate
(PM2.5) in parts of southwest Michigan. Pollutants within those
areas are expected to be in the Unhealthy for Sensitive Groups (USG,
Orange AQI) range.
The Air Quality Advisory is in effect for the following counties in
southwest Michigan...
Berrien and Cass
Wildfire smoke may trigger elevated particulates and ozone levels.
It is recommended that, when possible, you stay indoors and keep
time outdoors short and avoid strenuous activities, especially those
with respiratory diseases such as asthma.
Recommendations to reduce pollution and potential health effects:
PM 2.5:
* Reduce or eliminate outdoor burning, and the use of residential
wood burning devices;
* Keep windows closed overnight to prevent smoke from getting
indoors, and, if possible, run central air conditioning with MERV-
13 or higher rated filters.
Ozone:
* Using gas-powered lawn equipment;
* Driving less or delaying and/or combining errands;
* Refueling less or topping off when refueling.
For up-to-date air quality data for Michigan visit the MiAir site:
https://air-egle.hub.arcgis.com/
For up-to-date air quality data nationally visit EPA`s Air Now site:
https://www.airnow.gov/
For further health information, please see MDHHS`s Wildfire Smoke
and You Health site:
https://www.michigan.gov/mdhhs/safety-injury-prev/environmental-
health/your-health-and-wildfire-smoke
$$
Andersen
MIZ050-056-057-064-071-170400-
Muskegon-Ottawa-Kent-Allegan-Van Buren-
Including the cities of Muskegon, Grand Haven, Jenison,
Grand Rapids, Holland, and South Haven
1203 PM EDT Tue Jul 15 2025
Air Quality Advisory for July 16, 2025
The Michigan Department of Environment, Great Lakes, and
Energy (EGLE) has declared an Air Quality Advisory for July
16 for elevated levels of ozone in several western lake shore
counties.
Pollutants within those areas are expected to be in the
Unhealthy for Sensitive Groups (USG, Orange AQI) range.
The Air Quality Advisory is in effect for the following
Michigan counties:
Allegan, Kent, Muskegon, Ottawa, and Van Buren
As wildfire smoke exits the region, leftover chemical precursors
are present which could trigger elevated ozone levels. Original
forecasts of early cloud cover during Wednesday now look less
likely as projected West Michigan lake dynamics look to delay the
cloud arrival.
Minus the cloud coverage, elements such as wind direction,
temperature, dew points, and upper air conditions all point towards
the likelihood that elevated ozone concentrations, in the USG range,
could occur throughout those counties.
It is recommended that, when possible, you avoid strenuous outdoor
activities, especially those with respiratory diseases such as asthma.
People and businesses are urged to avoid activities which can lead to
ozone formation.
These activities include: refueling vehicles or topping off when
refueling; using gasoline powered lawn equipment; using charcoal
lighter fluid.
Positive activities include: driving less; telecommuting; walking or
bike riding; delaying or combining errands; using water-based
paints.
For further information, please see EPAs Air Now site for up-to-date
air quality data: https://www.airnow.gov/
$$
Thomas
INZ103-203-171000-
Northern La Porte-Southern La Porte-
Including the cities of Michigan City, La Porte, Kingsbury,
Fish Lake, Wanatah, La Crosse, and Union Mills
1039 AM CDT Tue Jul 15 2025
...AIR QUALITY ALERT IN EFFECT TODAY THROUGH MIDNIGHT CDT WEDNESDAY
NIGHT...
The officials at the Indiana Department of Environmental Management
have declared an Air Quality Action Day, in effect for Tuesday July
15 and Wednesday July 16.
An Air Quality Action Day for Ozone has been issued. Ozone levels
are expected to be in the Unhealthy for Sensitive Groups range.
Active children and adults, and people with respiratory disease,
such as asthma should limit prolonged outdoor exposure.
Here are some recommended actions that the public can take:
* Walk, bike, carpool or use public transportation.
* Avoid using the drive-through and combine errands into one trip.
* Avoid refueling your vehicle or using gasoline-powered lawn
equipment until after 7pm.
* Turn off your engine when idling for more than 30 seconds.
* Conserve energy by turning off lights or setting the air
conditioner to 75 degrees or above.
For additional information, please visit the IDEM Smog page at:
http://www.in.gov/idem/airmonitoring/smogwatch/
$$
