Connecticut

• Middlesex County
• Hartford-West Hartford-Willimantic, CT

High Ozone Days		Learn More
Ozone Grade:	F	How is my grade calculated?
Weighted Average:	7.8	Change Since 1996: 17.2 7.8 fewer days this year
View Orange, Red, and Purple Ozone Days Orange Ozone Days: 19 What do the colors mean? Red Ozone Days: 3 What do the colors mean? Purple Ozone Days: 0 What do the colors mean?
Particle Pollution - 24 Hour		Learn More
Grade:	DNC	How is my grade calculated?
Weighted Average:	DNC	No Data
View Orange, Red, and Purple Particle Pollution Days Orange Particle Days: DNC What do the colors mean? Red Particle Days: DNC What do the colors mean? Purple Particle Days: DNC What do the colors mean?
Particle Pollution - Annual		Learn More
Grade:	DNC	How is my grade calculated?
Design Value	DNC	No Data
Groups At Risk		Learn More
Total Population:	165,702	Risks to the population
Pediatric Asthma:	4,201	Risks to people with Asthma
Adult Asthma:	12,186	Risks to people with Asthma
Chronic Bronchitis:	5,932	Risks to people with Chronic Bronchitis
Emphysema:	3,101	Risks to people with Emphysema
Cardiovascular Disease:	51,066	Risks to people with Cardiovascular Disease
Diabetes:	9,058	Risks to people with Diabetes
Children Under 18:	35,045	Risks to children and teens
Adults 65 & Over:	24,554	Risks to older adults
Poverty Estimate:	9,149	Risks to people with low incomes

Middlesex	09007	F	19	3	0	DNC	0	0	0	0		Dnc	0	165702	35045	24554	4201	12186	5932	3101	113	51066	9058	9149	17.2	21.8	19	20.7	23.2	23.3	17.2	12.8	12.2	14.5	11.2	7.8	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

Hartford	Hartford-West Hartford-Willimantic, CT	Hartford-West-Hartford-Willimantic-CT.html	hartford-09003.html	09003	5.0	F	9	4	0	C	1.0	3	0	0	0	Pass	9.2	879835	201894	126148	24200	63498	30199	15570	597	258121	45441	86396	9.2	13.8	10.7	12.7	13.2	13.3	9.5	7.2	7.8	9.8	7.3	5.0	2.2	3.5	3.5	5.3	3.7	3.3	1.7	1.0	12.7	13.1	11.3	11.4	11.1	10.7	10.1	9.2
Tolland	Hartford-West Hartford-Willimantic, CT	Hartford-West-Hartford-Willimantic-CT.html	tolland-09013.html	09013	9.8	F	25	3	0	DNC	0	0	0	0		Dnc	0	150461	30248	17944	3626	11350	5172	2467	103	42733	7341	9140	15.7	19.5	16.5	16.2	18.7	18.5	13.5	8.7	9.8	14.3	12	9.8	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

Ranked 41 for high ozone days out of 277 metropolitan areas Ranked 113 for 24-hour particle pollution out of 277 metropolitan areas Ranked 173 for annual particle pollution out of 277 metropolitan areas Take Action | Support Clean Air | Local Air Quality Contact Your Local Lung Association: Connecticut Compare Your Air Select Your State Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware District of Columbia Florida Georgia Hawaii Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Ohio Oklahoma Oregon Pennsylvania Rhode Island South Carolina South Dakota Tennessee Texas Utah Vermont Virginia Washington West Virginia Wisconsin Wyoming Select your City Albany, GA Albany-Corvallis-Lebanon, OR Albany-Schenectady-Amsterdam, NY Albuquerque, NM Alexandria, LA Allentown-Bethlehem-Easton, PA-NJ Altoona, PA 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Follette, TN Kokomo-Peru, IN La Crosse, WI-MN Lafayette-Acadiana, LA Lafayette-Frankfort, IN Lake Charles-Jennings, LA Lake Havasu City-Kingman, AZ Lakeland-Winter Haven, FL Lancaster, PA Lansing-East Lansing-Owosso, MI Laredo, TX Las Cruces, NM Las Vegas-Paradise-Pahrump, NV Lawton, OK Lewiston, ID-WA Lexington-Fayette--Frankfort--Richmond, KY Lima-Van Wert-Wapakoneta, OH* Lincoln, NE Little Rock-North Little Rock-Pine Bluff, AR Logan, UT-ID Longview-Marshall, TX Los Angeles-Long Beach-Riverside, CA Louisville-Jefferson County-Elizabethtown-Scottsburg, KY-IN Lubbock-Levelland, TX Lumberton-Laurinburg, NC Lynchburg, VA Macon-Warner Robins-Fort Valley, GA Madison-Baraboo, WI McAllen-Edinburg-Pharr, TX Medford, OR Memphis, TN-MS-AR Merced, CA Miami-Fort Lauderdale-Pompano Beach, FL Midland-Odessa, TX Milwaukee-Racine-Waukesha, WI Minneapolis-St. Paul-St. Cloud, MN-WI Missoula, MT Mobile-Daphne-Fairhope, AL Modesto, CA Monroe-Bastrop, LA Montgomery-Alexander City, AL Morgantown, WV 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Mount, NC Rome, GA Sacramento--Arden-Arcade--Yuba City, CA-NV Saginaw-Bay City-Saginaw Township North, MI Salem, OR Salinas, CA Salisbury-Ocean Pines, MD Salt Lake City-Ogden-Clearfield, UT San Antonio-New Braunfels, TX San Diego-Carlsbad-San Marcos, CA San Jose-San Francisco-Oakland, CA San Luis Obispo-Paso Robles, CA Santa Barbara-Santa Maria-Goleta, CA Santa Fe-Espanola, NM Sarasota-Bradenton-Punta Gorda, FL Savannah-Hinesville-Fort Stewart, GA Scranton--Wilkes-Barre, PA Seattle-Tacoma-Olympia, WA Sheboygan, WI Shreveport-Bossier City-Minden, LA Sioux City-Vermillion, IA-NE-SD Sioux Falls, SD South Bend-Elkhart-Mishawaka, IN-MI Spokane, WA Springfield, IL Springfield, MA Springfield, MO St. George, UT St. Joseph, MO-KS St. Louis-St. Charles-Farmington, MO-IL State College, PA Steubenville-Weirton, OH-WV Stockton, CA Syracuse-Auburn, NY Tallahassee, FL Tampa-St. Petersburg-Clearwater, FL Terre Haute, IN Texarkana, TX-Texarkana, AR Toledo-Fremont, OH Topeka, KS Tucson, AZ Tulsa-Bartlesville, OK Tuscaloosa, AL Tyler-Jacksonville, TX Utica-Rome, NY Valdosta, GA Victoria, TX Virginia Beach-Norfolk-Newport News, VA-NC Visalia-Porterville, CA Waco, TX Washington-Baltimore-Northern Virginia, DC-MD-VA-WV Waterloo-Cedar Falls, IA Wausau-Merrill, WI Wenatchee-East Wenatchee, WA Wheeling, WV-OH Wichita-Winfield, KS Williamsport-Lock Haven, PA Wilmington, NC Yakima, WA York-Hanover-Gettysburg, PA Youngstown-Warren-East Liverpool, OH-PA Yuma, AZ
High Ozone Days	Learn More
	Change Since This County: Middlesex, CT Other counties with monitors in this metropolitan area There are no other counties in this metropolitan area What is my length? 3 Hartford, CT Tolland, CT A B C D F DNC INC
Particle Pollution - 24 Hour	Learn More
	Change Since This County: Middlesex, CT Other counties with monitors in this metropolitan area There are no other counties in this metropolitan area Hartford, CT Tolland, CT A B C D F DNC INC
Particle Pollution - Annual	Learn More
	Change Since This County: Middlesex, CT Other counties with monitors in this metropolitan area There are no other counties in this metropolitan area Hartford, CT Tolland, CT PASS FAIL DNC INC

Groups At Risk		Learn More
Total Population:		Risks to the population
Pediatric Asthma:		Risks to people with Asthma
Adult Asthma:		Risks to people with Asthma
Chronic Bronchitis:		Risks to people with Chronic Bronchitis
Emphysema:		Risks to people with Emphysema
Cardiovascular Disease:		Risks to people with Cardiovascular Disease
Diabetes:		Risks to people with Diabetes
Children Under 18:		Risks to children and teens
Adults 65 & Over:		Risks to older adults
Poverty Estimate:		Risks to people with low incomes

Notes:

(1) INC indicates incomplete monitoring data for all three years. Therefore, those counties are excluded from the grade analysis.
(2) DNC indicates that there is no monitor collecting data in the county.

More about Methodology.