Bad Air Days in Hinds County, Mississippi: under 1 a Year

under 1 bad air day a year

Rare: among the cleanest-air counties EPA monitors. Ranked 762 of 996 monitored counties, where 1 is worst.

What makes them bad: mostly particles: smoke and dust (71% particle days).

The bad-air season here

Most bad days here fall in June and February and August and October. Averaged over 2016 to 2025.

What actually helps here

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 record for Hinds

In 2000 to 2009 this county averaged 8 bad days a year; in 2016 to 2025, under 1. The air has improved. The worst recent year was 2023, with 3 bad days on 365 monitored days.

Date	AQI	Main pollutant
2023-06-08	115	Ozone
2020-06-26	114	PM2.5
2018-08-15	112	PM2.5
2023-02-28	106	PM2.5
2022-06-13	105	PM2.5

An ordinary day in Hinds

Across 3,653 monitored days from 2016 to 2025, the air in Hinds County rated Good on 44% of them, less often than the 72% typical of monitored counties, and Moderate on 56%. The median day sat at AQI 52; one day in ten went above 66.

The pollutant setting the AQI on an ordinary day here:

fine particles (PM2.5)81%2,957 days
ozone19%690 days

Hinds County by year

Year	Days monitored	Good	Moderate	Over 100	Over 150	Median AQI	Highest AQI
2025*	365	167	198	0	0	52	84
2024	366	203	163	0	0	48	96
2023	365	131	231	3	0	54	115
2022	365	168	195	2	0	52	105
2021	365	144	221	0	0	52	88
2020	366	152	213	1	0	53	114
2019	365	161	204	0	0	52	100
2018	365	165	199	1	0	52	112
2017	365	162	203	0	0	52	90
2016	366	153	213	0	0	52	100
2015	365	131	234	0	0	54	100
2014	365	106	258	1	1	56	154
2013	365	157	208	0	0	52	93
2012	366	146	217	3	1	53	156
2011	365	70	288	7	0	58	150
2010	362	129	232	1	0	54	108

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

Elsewhere in Mississippi

DeSoto County2/yr
Harrison County1/yr
Jackson Countyunder 1/yr
Bolivar Countyunder 1/yr
Forrest Countyunder 1/yr
Lee Countyunder 1/yr
Hancock Countyunder 1/yr
Yalobusha Countyunder 1/yr

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.