Bad Air Days in Pointe Coupee Parish, Louisiana: 1 a Year

1 bad air day a year

Fewer bad air days than most monitored US counties. Ranked 678 of 996 monitored counties, where 1 is worst.

What makes them bad: mostly ozone: summer smog (0% particle days).

When the bad days come in Pointe Coupee

Most bad days here fall in May. Averaged over 2016 to 2025.

What to buy, and what not to

Bad air days are rare here. A standard furnace filter is enough; no purifier needed for outdoor air.
On the odd bad day, check AirNow and keep windows shut.

The worst days on file

In 2000 to 2009 this county averaged 13 bad days a year; in 2016 to 2025, 1. The air has improved. The worst recent year was 2019, with 3 bad days on 351 monitored days.

Date	AQI	Main pollutant
2019-05-06	112	Ozone
2022-05-29	112	Ozone
2023-05-04	112	Ozone
2023-10-04	108	Ozone
2017-05-08	105	Ozone

Most days, not the worst ones

Across 3,590 monitored days from 2016 to 2025, the air in Pointe Coupee Parish rated Good on 93% of them, more often than the 72% typical of monitored counties, and Moderate on 6%. The median day sat at AQI 33; one day in ten went above 47.

The pollutant setting the AQI on an ordinary day here:

ozone100%3,590 days

Year by year

Year	Days monitored	Good	Moderate	Over 100	Over 150	Median AQI	Highest AQI
2025*	365	342	23	0	0	35	93
2024	355	328	26	1	0	36	101
2023	362	323	36	3	0	36	112
2022	346	323	22	1	0	34	112
2021	365	353	12	0	0	32	100
2020	362	343	19	0	0	32	100
2019	351	322	26	3	0	33	112
2018	356	324	32	0	0	31	97
2017	363	343	18	2	0	32	105
2016	365	346	19	0	0	33	100
2015	364	337	25	2	0	32	122
2014	327	302	20	5	0	34	140
2013	344	307	36	1	0	37	101
2012	361	281	71	9	0	41	150
2011	365	313	41	11	1	38	151
2010	362	286	66	10	0	41	143

*2025 may be a partial year in EPA's file.

Nearby counties on file

How this is counted

A bad air day is a day the county's daily AQI from EPA AirData went above 100, the level where EPA tells children, older adults and people with asthma or heart disease to cut back outdoors. Monitors do not run every day, so yearly counts are scaled to 365 days. This is the record, not today's air: for that, check AirNow. More on the method in how the county numbers are made, on the AQI 100 line in what counts as a bad air day, and on why a purifier does not touch ozone in smoke vs ozone.