EnviroNearby

Burlington County, New Jersey air quality history

Daily Air Quality Index summaries from EPA monitors in Burlington, New Jersey, 1980–2009.

100%
Good days in 2009
5
Median daily AQI, 2009
0
Days above 100 in 2009
354
Days with an AQI in 2009 (of 365)

In 2009, EPA reported a daily Air Quality Index (AQI) for Burlington, New Jersey on 354 days. 354 of those days (100%) were in the Good range, and the median daily AQI was 5. That median is lower than the typical monitored county in New Jersey (median 44 across 16 counties), and lower than the typical monitored U.S. county (41). The main pollutant was carbon monoxide (CO) on 354 days. Across the years with fuller monitoring, the share of Good days rose: an average of 61% in 1980–1982 versus 100% in 2007–2009.

The most recent year with data for this county is 2009; EPA's files for 2010–2025 contain no row for it, which usually means its monitors stopped reporting.

How the days broke down each year

Each bar is one year. The colored segments show the share of monitored days that fell in each AQI category.

Share of monitored days in each AQI category, by year0%25%50%75%100%1980: Good 186 of 359 days1980: Moderate 89 of 359 days1980: Unhealthy for Sensitive Groups 35 of 359 days1980: Unhealthy 26 of 359 days1980: Very Unhealthy 23 of 359 days19801981: Good 252 of 365 days1981: Moderate 77 of 365 days1981: Unhealthy for Sensitive Groups 20 of 365 days1981: Unhealthy 12 of 365 days1981: Very Unhealthy 4 of 365 days1982: Good 224 of 361 days1982: Moderate 91 of 361 days1982: Unhealthy for Sensitive Groups 23 of 361 days1982: Unhealthy 18 of 361 days1982: Very Unhealthy 5 of 361 days1983: Good 210 of 364 days1983: Moderate 90 of 364 days1983: Unhealthy for Sensitive Groups 25 of 364 days1983: Unhealthy 24 of 364 days1983: Very Unhealthy 15 of 364 days1984: Good 227 of 366 days1984: Moderate 91 of 366 days1984: Unhealthy for Sensitive Groups 29 of 366 days1984: Unhealthy 13 of 366 days1984: Very Unhealthy 6 of 366 days1985: Good 230 of 365 days1985: Moderate 84 of 365 days1985: Unhealthy for Sensitive Groups 25 of 365 days1985: Unhealthy 18 of 365 days1985: Very Unhealthy 8 of 365 days19851986: Good 273 of 363 days1986: Moderate 57 of 363 days1986: Unhealthy for Sensitive Groups 20 of 363 days1986: Unhealthy 8 of 363 days1986: Very Unhealthy 5 of 363 days1987: Good 260 of 356 days1987: Moderate 58 of 356 days1987: Unhealthy for Sensitive Groups 14 of 356 days1987: Unhealthy 17 of 356 days1987: Very Unhealthy 7 of 356 days1988: Good 252 of 364 days1988: Moderate 51 of 364 days1988: Unhealthy for Sensitive Groups 28 of 364 days1988: Unhealthy 17 of 364 days1988: Very Unhealthy 16 of 364 days1989: Good 258 of 365 days1989: Moderate 71 of 365 days1989: Unhealthy for Sensitive Groups 22 of 365 days1989: Unhealthy 10 of 365 days1989: Very Unhealthy 4 of 365 days1990: Good 283 of 364 days1990: Moderate 42 of 364 days1990: Unhealthy for Sensitive Groups 23 of 364 days1990: Unhealthy 12 of 364 days1990: Very Unhealthy 4 of 364 days19901991: Good 245 of 365 days1991: Moderate 60 of 365 days1991: Unhealthy for Sensitive Groups 33 of 365 days1991: Unhealthy 15 of 365 days1991: Very Unhealthy 12 of 365 days1992: Good 358 of 361 days1992: Moderate 3 of 361 days1993: Good 360 of 363 days1993: Moderate 3 of 363 days1994: Good 351 of 357 days1994: Moderate 6 of 357 days1995: Good 363 of 364 days1995: Moderate 1 of 364 days19951996: Good 361 of 364 days1996: Moderate 3 of 364 days1997: Good 363 of 365 days1997: Moderate 2 of 365 days1998: Good 365 of 365 days1999: Good 362 of 362 days2000: Good 366 of 366 days20002001: Good 363 of 363 days2002: Good 354 of 354 days2003: Good 361 of 361 days2004: Good 366 of 366 days2005: Good 362 of 362 days20052006: Good 365 of 365 days2007: Good 365 of 365 days2008: Good 362 of 362 days2009: Good 354 of 354 days2009
  • Good
  • Moderate
  • Unhealthy for Sensitive Groups
  • Unhealthy
  • Very Unhealthy
  • Hazardous

Typical and high-end AQI over time

The median is the middle day of the year. The 90th percentile is the level that only the highest 10% of days exceeded.

Median and 90th-percentile daily AQI, by year0501001502001980: 90th percentile AQI 1721981: 90th percentile AQI 1001982: 90th percentile AQI 1121983: 90th percentile AQI 1561984: 90th percentile AQI 1191985: 90th percentile AQI 1261986: 90th percentile AQI 971987: 90th percentile AQI 1121988: 90th percentile AQI 1401989: 90th percentile AQI 1001990: 90th percentile AQI 1011991: 90th percentile AQI 1401992: 90th percentile AQI 351993: 90th percentile AQI 281994: 90th percentile AQI 321995: 90th percentile AQI 261996: 90th percentile AQI 251997: 90th percentile AQI 221998: 90th percentile AQI 231999: 90th percentile AQI 222000: 90th percentile AQI 222001: 90th percentile AQI 192002: 90th percentile AQI 172003: 90th percentile AQI 162004: 90th percentile AQI 152005: 90th percentile AQI 152006: 90th percentile AQI 132007: 90th percentile AQI 92008: 90th percentile AQI 82009: 90th percentile AQI 81980: Median AQI 501981: Median AQI 421982: Median AQI 461983: Median AQI 451984: Median AQI 441985: Median AQI 441986: Median AQI 391987: Median AQI 381988: Median AQI 391989: Median AQI 381990: Median AQI 351991: Median AQI 391992: Median AQI 191993: Median AQI 161994: Median AQI 171995: Median AQI 141996: Median AQI 141997: Median AQI 131998: Median AQI 131999: Median AQI 112000: Median AQI 102001: Median AQI 112002: Median AQI 102003: Median AQI 92004: Median AQI 82005: Median AQI 92006: Median AQI 72007: Median AQI 62008: Median AQI 52009: Median AQI 51980198519901995200020052009
  • Median daily AQI
  • 90th-percentile daily AQI

Main pollutant by day, 2009

On each monitored day, the AQI reflects whichever measured pollutant had the highest index. This counts how many days each pollutant set the AQI. A pollutant that was not measured here cannot appear.

PollutantDays as main pollutantShare of monitored days
Carbon monoxide (CO)354100%

Year-by-year data

Annual AQI summary by year
YearDays with AQIGoodModerateUnhealthy for Sensitive GroupsUnhealthyVery UnhealthyHazardousMedian AQI90th pct.Max AQIMain pollutant
2009354354000005816CO
2008362362000005820CO
2007365365000006916CO
20063653650000071320CO
20053623620000091533CO
20043663660000081530CO
20033613610000091630CO
200235435400000101741CO
200136336300000111941CO
200036636600000102244CO
199936236200000112243CO
199836536500000132347CO
199736536320000132262CO
199636436130000142553CO
199536436310000142667CO
199435735160000173280CO
199336336030000162857CO
199236135830000193560CO
199136524560331512039140237Ozone
19903642834223124035101219Ozone
19893652587122104038100224Ozone
198836425251281716039140242Ozone
19873562605814177038112210Ozone
198636327357208503997208Ozone
19853652308425188044126236Ozone
19843662279129136044119225Ozone
198336421090252415045156225Ozone
19823612249123185046112228Ozone
19813652527720124042100225Ozone
198035918689352623050172286Ozone

What this data can and can’t tell you

It is a county-level summary. EPA reports one AQI per day for the county, based on the monitors operating there. Air at a particular street, school or home can differ, especially near roads, industry or wildfire smoke.

It is not a health assessment. The AQI is EPA’s scale for communicating daily air quality. A county’s history can’t tell you what the health risk is for any particular person. For daily conditions and health guidance, see AirNow.

Rules change over time. EPA has revised AQI breakpoints, most recently for fine particles in 2024, so some year-to-year change can reflect the scale rather than the air.

All monitored counties in New Jersey

Source: U.S. EPA AirData, “Annual AQI by County” files for 1980–2009 (EPA download page). EPA file dates: 2026-06-26. Imported into EnviroNearby November 5, 2026. How we use this data · Report a problem