Air Quality in St Thomas, Virgin Islands

Q: What is the air quality in St Thomas, Virgin Islands?

Based on EPA data, St Thomas has a median AQI of 31 (Good). The primary pollutant is PM2.5.

Q: Is St Thomas a good place to live for air quality?

St Thomas has a 10-year average median AQI of 34 with 58 good air quality days in 2020.

Median AQI (2020)

Max AQI (2020)

↓ improving

10-Year Trend

PM2.5

Primary Pollutant

Good Days (2020)

Monitoring Stations

AQI Trend (Median)

Air Quality Days by Category

Annual Summary

Year	Median AQI	Max AQI	Good Days	Moderate Days	Unhealthy Days	PM2.5 Days
2020	31	75	58	17	0	75
2019	37	92	195	73	0	268
2018	36	126	127	55	1	183

Recent Daily AQI

Date	AQI	Category	Primary Pollutant
Dec 31, 2020	39	Good	PM2.5
Dec 30, 2020	31	Good	PM2.5
Dec 29, 2020	28	Good	PM2.5
Dec 28, 2020	22	Good	PM2.5
Dec 27, 2020	23	Good	PM2.5
Dec 26, 2020	34	Good	PM2.5
Dec 25, 2020	43	Good	PM2.5
Dec 24, 2020	43	Good	PM2.5
Dec 23, 2020	31	Good	PM2.5
Dec 22, 2020	35	Good	PM2.5
Dec 21, 2020	31	Good	PM2.5
Dec 20, 2020	24	Good	PM2.5
Dec 19, 2020	26	Good	PM2.5
Dec 18, 2020	28	Good	PM2.5
Dec 17, 2020	22	Good	PM2.5
Dec 16, 2020	23	Good	PM2.5
Dec 15, 2020	25	Good	PM2.5
Dec 14, 2020	22	Good	PM2.5
Dec 13, 2020	21	Good	PM2.5
Dec 12, 2020	24	Good	PM2.5
Dec 11, 2020	19	Good	PM2.5
Dec 10, 2020	19	Good	PM2.5
Dec 9, 2020	22	Good	PM2.5
Dec 8, 2020	21	Good	PM2.5
Dec 7, 2020	18	Good	PM2.5
Dec 6, 2020	18	Good	PM2.5
Dec 5, 2020	21	Good	PM2.5
Dec 4, 2020	23	Good	PM2.5
Dec 3, 2020	24	Good	PM2.5
Dec 2, 2020	19	Good	PM2.5
Dec 1, 2020	19	Good	PM2.5
Nov 30, 2020	17	Good	PM2.5
Nov 29, 2020	18	Good	PM2.5
Nov 28, 2020	18	Good	PM2.5
Nov 27, 2020	21	Good	PM2.5
Nov 26, 2020	24	Good	PM2.5
Nov 25, 2020	26	Good	PM2.5
Nov 24, 2020	33	Good	PM2.5
Nov 23, 2020	43	Good	PM2.5
Nov 22, 2020	61	Moderate	PM2.5
Nov 21, 2020	60	Moderate	PM2.5
Nov 20, 2020	52	Moderate	PM2.5
Nov 19, 2020	31	Good	PM2.5
Nov 18, 2020	36	Good	PM2.5
Nov 17, 2020	27	Good	PM2.5
Nov 16, 2020	26	Good	PM2.5
Nov 15, 2020	26	Good	PM2.5
Nov 14, 2020	30	Good	PM2.5
Nov 13, 2020	34	Good	PM2.5
Nov 12, 2020	31	Good	PM2.5
Nov 11, 2020	21	Good	PM2.5
Nov 10, 2020	22	Good	PM2.5
Nov 9, 2020	32	Good	PM2.5
Nov 8, 2020	48	Good	PM2.5
Nov 7, 2020	51	Moderate	PM2.5
Nov 6, 2020	44	Good	PM2.5
Nov 5, 2020	29	Good	PM2.5
Nov 4, 2020	52	Moderate	PM2.5
Nov 3, 2020	65	Moderate	PM2.5
Nov 2, 2020	65	Moderate	PM2.5
Nov 1, 2020	61	Moderate	PM2.5
Oct 31, 2020	53	Moderate	PM2.5
Oct 30, 2020	69	Moderate	PM2.5
Oct 29, 2020	55	Moderate	PM2.5
Oct 28, 2020	32	Good	PM2.5
Oct 27, 2020	38	Good	PM2.5
Oct 26, 2020	43	Good	PM2.5
Oct 25, 2020	52	Moderate	PM2.5
Oct 24, 2020	71	Moderate	PM2.5
Oct 6, 2020	75	Moderate	PM2.5
Oct 5, 2020	71	Moderate	PM2.5
Oct 4, 2020	70	Moderate	PM2.5
Oct 3, 2020	56	Moderate	PM2.5
Oct 2, 2020	45	Good	PM2.5
Oct 1, 2020	31	Good	PM2.5
Sep 28, 2019	36	Good	PM2.5
Sep 27, 2019	52	Moderate	PM2.5
Sep 26, 2019	53	Moderate	PM2.5
Sep 25, 2019	44	Good	PM2.5
Sep 24, 2019	47	Good	PM2.5
Sep 23, 2019	52	Moderate	PM2.5
Sep 22, 2019	72	Moderate	PM2.5
Sep 21, 2019	42	Good	PM2.5
Sep 20, 2019	52	Moderate	PM2.5
Sep 19, 2019	63	Moderate	PM2.5
Sep 18, 2019	71	Moderate	PM2.5
Sep 17, 2019	71	Moderate	PM2.5
Sep 16, 2019	67	Moderate	PM2.5
Sep 15, 2019	37	Good	PM2.5
Sep 14, 2019	39	Good	PM2.5

Monitoring Stations

# 8 Tolbod Gade

Charlotte Amalie

Est. 2007-10-01

18.3438, -64.9314

Frequently Asked Questions

What is the air quality in St Thomas, Virgin Islands?

Based on EPA data from 2020, St Thomas has a median Air Quality Index (AQI) of 31, which is classified as "Good." The primary pollutant is PM2.5. Over the past 10 years, air quality has been improving.

Is St Thomas a good place to live for air quality?

St Thomas has a 10-year average median AQI of 34. In 2020, there were 58 days with "Good" air quality and 0 days with unhealthy conditions. No special precautions are needed for most people.

What pollutants affect St Thomas the most?

The primary pollutant driving the AQI in St Thomas is PM2.5. This is monitored by 1 active EPA stations in the county. Other pollutants tracked include ozone, PM10, nitrogen dioxide, sulfur dioxide, and carbon monoxide.

How many air quality monitoring stations are in St Thomas?

There are 1 active EPA monitoring stations in St Thomas, Virgin Islands. These stations continuously measure pollutant levels and contribute to the daily AQI calculations.