Indiana

• Lake County
• Chicago-Naperville-Michigan City, IL-IN-WI

If you live in Lake County, the air you breathe may put your health at risk.

Ozone

Particle Pollution 24-hour

Particle Pollution Annual

You can make a difference in the air that you breathe.

Tell your member of Congress to protect your health: Don’t weaken the Clean Air Act.

Tell us why having healthy air matters to you.

Tell your friends about the air where you live.

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High Ozone Days		Learn More
Ozone Grade:	C	How is my grade calculated?
Weighted Average:	1.0	Change Since 1996: 19.5 1.0 fewer days this year
View Orange, Red, and Purple Ozone Days Orange Ozone Days: 3 What do the colors mean? Red Ozone Days: 0 What do the colors mean? Purple Ozone Days: 0 What do the colors mean?
Particle Pollution - 24 Hour		Learn More
Grade:	F	How is my grade calculated?
Weighted Average:	5.3	Change Since 2000: 14.5 5.3 fewer days this year
View Orange, Red, and Purple Particle Pollution Days Orange Particle Days: 16 What do the colors mean? Red Particle Days: 0 What do the colors mean? Purple Particle Days: 0 What do the colors mean?
Particle Pollution - Annual		Learn More
Grade:	Pass	How is my grade calculated?
Design Value	12.4	Change Since 2000: 17.7 12.4 µg/m3
Groups At Risk		Learn More
Total Population:	496,005	Risks to the population
Pediatric Asthma:	11,190	Risks to people with Asthma
Adult Asthma:	35,054	Risks to people with Asthma
Chronic Bronchitis:	16,130	Risks to people with Chronic Bronchitis
Emphysema:	7,237	Risks to people with Emphysema
Cardiovascular Disease:	124,189	Risks to people with Cardiovascular Disease
Diabetes:	37,285	Risks to people with Diabetes
Children Under 18:	127,273	Risks to children and teens
Adults 65 & Over:	65,870	Risks to older adults
Poverty Estimate:	86,577	Risks to people with low incomes

Lake

18089

C

3

0

0

F

5.3

16

0

0

Pass

12.4

496005

127273

65870

11190

35054

16130

7237

387

124189

37285

86577

19.5

24.2

20.5

21

20

23.2

15

12.5

9.3

13.7

7

5.3

1.0

14.5

12.2

5.7

10.7

7.3

6

2.7

3

5.3

17.7

17.7

17.2

17.5

14

14.5

13.3

12.9

12.4

The air you breathe needs your support.

You can make a difference in the air that you breathe.

Tell your member of Congress to protect your health: Don’t weaken the Clean Air Act.

Tell us why having healthy air matters to you.

Tell your friends about the air where you live.

• Email
• Facebook
• Twitter

Will	Chicago-Naperville-Michigan City, IL-IN-WI	Chicago-Naperville-Michigan-City-IL-IN-WI.html	will-17197.html	17197	0.0	A	0	0	0	B	0.3	1	0	0		Pass	11.3	677560	196954	62814	19377	44332	20226	8116	493	148557	40076	57207	6.3	7.3	7.7	7	9.3	10.3	8.7	3.7	2.3	2	0.7	0	0.0	0.7	1	0.7	2	1.3	2	1	1	0.3	15.5	14.7	13.3	13.7	13.2	14.1	12.8	12.3	11.3
Porter	Chicago-Naperville-Michigan City, IL-IN-WI	Chicago-Naperville-Michigan-City-IL-IN-WI.html	porter-18127.html	18127	1.3	C	4	0	0	C	1.7	5	0	0		Pass	11.2	164343	39921	20363	3510	11869	5419	2367	129	41328	12403	17464	19	23.5	20.3	18	18.2	21	17	12	7.7	9.3	4	3.7	1.3	0.3	0.7	1	2.3	1.7	2	0.7	0.7	1.7	14.3	13.8	13.2	13.3	12.9	13.4	12.2	12	11.2
McHenry	Chicago-Naperville-Michigan City, IL-IN-WI	Chicago-Naperville-Michigan-City-IL-IN-WI.html	mchenry-17111.html	17111	0.0	A	0	0	0	A	0.0	0	0	0		Pass	10.0	308760	84175	31320	8281	20461	9685	4032	225	72566	19658	22381	9.2	7	8.3	6.3	8.7	6.7	6.3	3.3	2	2	0.3	0.7	0.0	DNC	DNC	DNC	DNC	DNC	DNC	DNC	0.3	0.0	13.6	12.7	11.9	12.5	12.3	12.4	11.2	10.4	10.0
Laporte	Chicago-Naperville-Michigan City, IL-IN-WI	Chicago-Naperville-Michigan-City-IL-IN-WI.html	laporte-18091.html	18091	1.3	C	4	0	0	A	0.0	0	0	0		Pass	10.7	111467	25382	15867	2232	8172	3793	1725	88	29400	8839	16988	22.3	22.8	18.7	15.7	19.7	21.5	15	8.8	6.2	8.8	4	3.7	1.3	0.3	0.7	0.3	2.3	2	2.7	1	1	0.0	13.6	13.6	12.9	13.1	12.5	12.5	11.5	11.2	10.7
Lake	Chicago-Naperville-Michigan City, IL-IN-WI	Chicago-Naperville-Michigan-City-IL-IN-WI.html	lake-17097.html	17097	2.0	C	6	0	0	A	0.0	0	0	0		Pass	9.3	703462	192672	73093	18956	46627	21951	9168	513	164408	44542	61515	11	13	11.2	8.7	11.5	12.5	9.5	8.2	7.2	8.8	3	3	2.0	0.3	0.3	0.3	1	1	1	0	0	0.0	13.1	12.8	11.7	11.8	11.6	12.1	10.6	10	9.3
Kenosha	Chicago-Naperville-Michigan City, IL-IN-WI	Chicago-Naperville-Michigan-City-IL-IN-WI.html	kenosha-55059.html	55059	3.3	F	10	0	0	B	0.7	2	0	0		Pass	10.6	166426	42829	18679	3804	10250	5280	2224	106	39550	8372	21380	20.5	24.3	22	21.8	23	25.5	17.8	13.3	10.2	12.3	5.7	4.7	3.3	0.3	0.7	0.3	2	1.7	2	1.3	1.7	0.7	11.9	11.7	10.9	11.3	11.8	12.9	12.7	12.2	10.6
Kane	Chicago-Naperville-Michigan City, IL-IN-WI	Chicago-Naperville-Michigan-City-IL-IN-WI.html	kane-17089.html	17089	0.3	B	1	0	0	B	0.3	1	0	0		Pass	10.6	515269	149190	49690	14678	33785	15396	6231	375	113320	30589	56233	3.7	4.3	3	4.3	5.7	7	5	4.3	3	4	1	1	0.3	0.7	0.7	0.3	1.3	1.3	1.7	1	1	0.3	0	14.2	13	13.5	13	14.3	12.5	11.6	10.6
Dupage	Chicago-Naperville-Michigan City, IL-IN-WI	Chicago-Naperville-Michigan-City-IL-IN-WI.html	dupage-17043.html	17043	0.0	A	0	0	0	B	0.3	1	0	0		Pass	10.9	916924	227430	106398	22375	62670	29894	12814	666	226341	61475	62484	2	1.7	1	1	3.3	3.7	3.3	1.7	1.3	1.7	0.3	0.3	0.0	0.3	0.3	0	2	1.3	1.7	1	1	0.3	15.2	14.4	13.5	13.8	13.7	14	12.6	11.6	10.9
Cook	Chicago-Naperville-Michigan City, IL-IN-WI	Chicago-Naperville-Michigan-City-IL-IN-WI.html	cook-17031.html	17031	5.2	F	14	1	0	F	6.0	18	0	0		Pass	12.7	5194675	1232280	620329	121236	365672	166900	70157	3766	1242549	336453	858392	16.8	20.2	17.3	17.5	20.8	22.7	17	13.2	11.7	16.3	8.7	7.8	5.2	14.3	11.7	7	18.7	13.7	14.3	8.7	8.7	6.0	18.1	17.3	16	17.2	15.6	15.7	0	13.5	12.7

Ranked 45 for high ozone days out of 277 metropolitan areas Ranked 18 for 24-hour particle pollution out of 277 metropolitan areas Ranked 30 for annual particle pollution out of 277 metropolitan areas Take Action | Support Clean Air | Local Air Quality Contact Your Local Lung Association: Illinois, Indiana, Wisconsin 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, 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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: Lake, IN Other counties with monitors in this metropolitan area There are no other counties in this metropolitan area What is my length? 10 Cook, IL Dupage, IL Kane, IL Kenosha, WI Lake, IL Laporte, IN McHenry, IL Porter, IN Will, IL A B C D F DNC INC
Particle Pollution - 24 Hour	Learn More
	Change Since This County: Lake, IN Other counties with monitors in this metropolitan area There are no other counties in this metropolitan area Cook, IL Dupage, IL Kane, IL Kenosha, WI Lake, IL Laporte, IN McHenry, IL Porter, IN Will, IL A B C D F DNC INC
Particle Pollution - Annual	Learn More
	Change Since This County: Lake, IN Other counties with monitors in this metropolitan area There are no other counties in this metropolitan area Cook, IL Dupage, IL Kane, IL Kenosha, WI Lake, IL Laporte, IN McHenry, IL Porter, IN Will, IL 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.