Where days of the worst air pollution are being removed from the record in the US

Days of air pollution readings removed from official EPA statistics and regulatory decisions

5

10

50

100+ days

Air-quality monitors

with days removed

WA

MT

OR

MA

ID

MI

RI

PA

CT

OH

NV

NJ

UT

MD

CO

CA

AZ

NM

LA

TX

Counties in California

have had 166 days of

pollution forgiven

since 2016

5

10

50

100+ days

Air-quality monitors

with days removed

WA

MT

OR

MA

ID

MI

RI

PA

CT

OH

NV

NJ

UT

MD

CO

CA

AZ

NM

LA

TX

Counties in California

have had 166 days of

pollution forgiven

since 2016

5

10

50

100+ days

Air-quality monitors

with days removed

WA

MT

OR

MA

ID

MI

RI

PA

CT

OH

NV

NJ

UT

MD

CO

CA

AZ

NM

LA

TX

Counties in California

have had 166 days of

pollution forgiven

since 2016

5

10

50

100+ days

Air-quality monitors

with days removed

Wash.

Mont.

Ore.

Mass.

Idaho

Mich.

R.I.

Conn.

Pa.

Nev.

N.J.

Ohio

Md.

Utah

Colo.

Calif.

Ariz.

N.M.

La.

Texas

Counties in California

have had 166 days of

pollution forgiven

since 2016

5

10

50

100+ days

Air-quality monitors

with days removed

Wash.

Mont.

Ore.

Mass.

Idaho

Mich.

R.I.

Conn.

Pa.

Nev.

N.J.

Ohio

Md.

Utah

Colo.

Calif.

Ariz.

N.M.

La.

Texas

Counties in California

have had 166 days of

pollution forgiven

since 2016

5

10

50

100+ days

Wash.

Air-quality monitors

with days removed

Mont.

Ore.

Mass.

Idaho

Mich.

R.I.

Conn.

Pa.

N.J.

Nev.

Ohio

Md.

Utah

Colo.

Calif.

Ariz.

N.M.

Counties in California

have had 166 days of

pollution forgiven

since 2016

La.

Texas