Fine particles
16.4µg/m³Moderate · 1 hourCAMS model • Open-Meteo
WrocławAir quality, PM2.5 and PM10
Check PM2.5 and PM10 particle levels alongside ozone, nitrogen dioxide and other gases. Compare the latest available concentrations with recent days and explore changes in air pollution through the available historical records.
Wrocław - latest available concentrations (October 23, 2026, 03:00 local time): PM2.5: 16.4 µg/m³, PM10: 20.2 µg/m³, O₃: 35 µg/m³, NO₂: 9.5 µg/m³, SO₂: 3.1 µg/m³, CO: 221 µg/m³. These are hourly CAMS model values for a point representing the city.
Air quality questions →Wrocław · Air pollutant concentrations
Data time: October 23, 2026 · 03:00 · local timeParticulate matter
20.2µg/m³Fair · 1 hourOzone
35µg/m³Good · 1 hourNitrogen dioxide
9.5µg/m³Good · 1 hourSulphur dioxide
3.1µg/m³Good · 1 hourCarbon monoxide
221µg/m³PM2.5 vs PM10 - what is the difference? → · Models and monitoring stations →
DAILY DATA · Wrocław
Wrocław - air pollution over recent days (2026-08-31 - 2026-10-22)
Concentrations of all available pollutants for this city.
PM2.5Lowest 3.54 2026-09-05Highest 37.16 2026-10-172026-08-31 - 2026-10-22
PM10Lowest 6.01 2026-09-05Highest 43.13 2026-10-172026-08-31 - 2026-10-22
O₃Lowest 27.83 2026-10-20Highest 64.71 2026-09-032026-08-31 - 2026-10-22
NO₂Lowest 3.38 2026-09-05Highest 21.09 2026-10-172026-08-31 - 2026-10-22
SO₂Lowest 1.16 2026-09-05Highest 8.39 2026-10-172026-08-31 - 2026-10-22
COLowest 137.54 2026-09-04Highest 363.08 2026-10-172026-08-31 - 2026-10-22
Scroll the chart or table sideways to see the full period.
| Pollutant | 2026-10-22 | 2026-10-21 | 2026-10-20 | 2026-10-19 | 2026-10-18 | 2026-10-17 | 2026-10-16 | 2026-09-07 | 2026-09-06 | 2026-09-05 | 2026-09-04 | 2026-09-03 | 2026-09-02 | 2026-09-01 | 2026-08-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 | 12.63 | 20.13 | 16.64 | 11.34 | 21.05 | 37.16 | 24.75 | 9.02 | 4.82 | 3.54 | 5.02 | 12.41 | 8.92 | 5.78 | 7.14 |
| PM10 | 16.04 | 25.18 | 18.77 | 13.18 | 24.08 | 43.13 | 30.33 | 15.62 | 9.87 | 6.01 | 7.54 | 16.79 | 12.26 | 8.17 | 10.55 |
| O₃ | 47.38 | 52.13 | 27.83 | 41.42 | 39.38 | 30.88 | 45.67 | 50.71 | 61.58 | 64.63 | 58.96 | 64.71 | 64.29 | 60.29 | 51.21 |
| NO₂ | 10.55 | 10.73 | 11.13 | 7.15 | 7.95 | 21.09 | 14.58 | 9.7 | 3.45 | 3.38 | 5.54 | 10.01 | 8.43 | 6.46 | 11.32 |
| SO₂ | 3.95 | 8.23 | 4.58 | 3.02 | 3.41 | 8.39 | 5.6 | 3.12 | 1.31 | 1.16 | 1.56 | 3.49 | 2.64 | 1.95 | 2.32 |
| CO | 203.83 | 221.92 | 221.67 | 194.5 | 236.21 | 363.08 | 266 | 186.04 | 158 | 141.08 | 137.54 | 194.29 | 184.58 | 168.42 | 167.63 |
A dot on the chart and a dash in the table indicate missing data. The latest day may be incomplete.
AIR QUALITY ARCHIVE · Wrocław
Wrocław - air pollution history (2018-11 - 2020-05)
Compare monthly particle and gas concentrations in the available archive.
PM2.5Lowest 10.6 2019-07Highest 40.1 2018-112018-11 - 2020-05
PM10Lowest 14.3 2020-05Highest 45.4 2018-112018-11 - 2020-05
O₃Lowest 22.05 2018-11Highest 82.45 2019-062018-11 - 2020-05
NO₂Lowest 20.37 2020-05Highest 33.43 2019-022018-11 - 2020-05
SO₂Lowest 2.33 2019-07Highest 8.11 2018-112018-11 - 2020-05
COLowest 317 2020-05Highest 687.5 2019-022018-11 - 2020-05
BCLowest 0.05 2020-03Highest 1.63 2020-012018-11 - 2020-05
Scroll the chart or table sideways to see the full period.
| Pollutant | 2020-05 | 2020-04 | 2020-03 | 2020-02 | 2020-01 | 2019-12 | 2019-11 | 2019-10 | 2019-09 | 2019-08 | 2019-07 | 2019-06 | 2019-05 | 2019-04 | 2019-03 | 2019-02 | 2019-01 | 2018-12 | 2018-11 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 | 10.95 | 16.3 | 20.55 | 12 | 29.25 | 22.6 | 23.8 | 19.05 | 12.1 | 10.65 | 10.6 | 12.35 | 13.35 | 21.15 | 19.3 | 30.9 | 29.4 | 23.6 | 40.1 |
| PM10 | 14.3 | 27.1 | 26.4 | 15 | 33.8 | 27.8 | 29.3 | 26.5 | 20.3 | 18.6 | 20.8 | 22.1 | 19.1 | 34 | 29.1 | 40.2 | 33.1 | 27.8 | 45.4 |
| O₃ | 72.45 | 77.45 | 58.05 | 56.35 | 30.2 | 31.15 | 23.9 | 31.2 | 46.2 | 62.55 | 63.55 | 82.45 | 62.5 | 74.65 | 55.7 | 39.2 | 39.8 | 29.3 | 22.05 |
| NO₂ | 20.37 | 24.23 | 23.83 | 22.83 | 31.23 | 28 | 28.3 | 29.6 | 23.6 | 25.27 | 21.57 | 22.63 | 23.47 | 25.53 | 24.13 | 33.43 | 27.3 | 24.57 | 28.1 |
| SO₂ | 2.68 | 5.77 | 4.79 | 3.08 | 5.36 | 4.61 | 4.79 | 3.87 | 2.96 | 2.82 | 2.33 | 2.73 | 3.67 | 5.17 | 3.94 | 6.89 | 5.87 | 5.49 | 8.11 |
| CO | 317 | 399 | 450.5 | 374.5 | 616 | 516.5 | 531 | 612.5 | 595 | 561 | 561 | 487.5 | 444 | 487.5 | 503 | 687.5 | 668.5 | 601 | 648 |
| BC | 0.46 | 0.77 | 0.05 | 0.72 | 1.63 | 1.34 | 1.34 | 0.91 | 0.52 | 0.34 | 0.26 | 0.31 | 0.56 | 0.98 | 0.23 | 0.57 | 0.57 | 0.71 | 1.37 |
A dot on the chart and a dash in the table indicate missing data. Historical values do not describe today’s air quality.
Historical data by station 3
AIR QUALITY ARCHIVE · Wrocław - Bartnicza
Wrocław - Bartnicza
Station code: Wrocław - Bartnicza
Monthly monitoring station data.
O₃Lowest 25.1 2019-11Highest 83.3 2019-062018-11 - 2020-05
NO₂Lowest 10.1 2019-06Highest 22.4 2019-022018-11 - 2020-05
Scroll the chart or table sideways to see the full period.
| Pollutant | 2020-05 | 2020-04 | 2020-03 | 2020-02 | 2020-01 | 2019-12 | 2019-11 | 2019-10 | 2019-09 | 2019-08 | 2019-07 | 2019-06 | 2019-05 | 2019-04 | 2019-03 | 2019-02 | 2019-01 | 2018-12 | 2018-11 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| O₃ | 66 | 71.1 | 59 | 53.2 | 27 | 31.6 | 25.1 | 33.9 | 47 | 62.5 | 63.9 | 83.3 | 64.9 | 78.5 | 58.4 | 43.7 | 43.4 | 32.5 | 26.2 |
| NO₂ | 11 | 13.1 | 13.2 | 12.2 | 21 | 16 | 16.5 | 15.6 | 11.2 | 11.3 | 11 | 10.1 | 10.8 | 10.4 | 12.7 | 22.4 | 17.1 | 14.9 | 16.8 |
A dot on the chart and a dash in the table indicate missing data. Historical values do not describe today’s air quality.
How should I interpret the data and averaging period? →
OpenAQ ↗GIOS
AIR QUALITY ARCHIVE · Wrocław - Korzeniowskiego
Wrocław - Korzeniowskiego
Station code: Wrocław - Korzeniowskiego
Monthly monitoring station data.
PM2.5Lowest 9.89 2020-05Highest 40.9 2018-112018-11 - 2020-05
PM10Lowest 14.3 2020-05Highest 45.4 2018-112018-11 - 2020-05
O₃Lowest 17.9 2018-11Highest 83.8 2020-042018-11 - 2020-05
NO₂Lowest 12.5 2019-06Highest 29.2 2019-022018-11 - 2020-05
SO₂Lowest 2.33 2019-07Highest 8.11 2018-112018-11 - 2020-05
COLowest 204 2020-05Highest 635 2019-072018-11 - 2020-05
BCLowest 0.05 2020-03Highest 1.63 2020-012018-11 - 2020-05
Scroll the chart or table sideways to see the full period.
| Pollutant | 2020-05 | 2020-04 | 2020-03 | 2020-02 | 2020-01 | 2019-12 | 2019-11 | 2019-10 | 2019-09 | 2019-08 | 2019-07 | 2019-06 | 2019-05 | 2019-04 | 2019-03 | 2019-02 | 2019-01 | 2018-12 | 2018-11 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 | 9.89 | 16 | 19.8 | 11.1 | 28.7 | 21.9 | 23.9 | 18.1 | 11.7 | 10.2 | 10.2 | 11.9 | 12.9 | 20.7 | 19.3 | 30.7 | 29.3 | 24 | 40.9 |
| PM10 | 14.3 | 27.1 | 26.4 | 15 | 33.8 | 27.8 | 29.3 | 26.5 | 20.3 | 18.6 | 20.8 | 22.1 | 19.1 | 34 | 29.1 | 40.2 | 33.1 | 27.8 | 45.4 |
| O₃ | 78.9 | 83.8 | 57.1 | 59.5 | 33.4 | 30.7 | 22.7 | 28.5 | 45.4 | 62.6 | 63.2 | 81.6 | 60.1 | 70.8 | 53 | 34.7 | 36.2 | 26.1 | 17.9 |
| NO₂ | 16 | 20.3 | 20 | 20.4 | 27.7 | 24.8 | 24.4 | 25.9 | 18.2 | 17.8 | 14.6 | 12.5 | 16.1 | 19.2 | 19.6 | 29.2 | 22.8 | 21.8 | 24.9 |
| SO₂ | 2.68 | 5.77 | 4.79 | 3.08 | 5.36 | 4.61 | 4.79 | 3.87 | 2.96 | 2.82 | 2.33 | 2.73 | 3.67 | 5.17 | 3.94 | 6.89 | 5.87 | 5.49 | 8.11 |
| CO | 204 | 269 | 297 | 251 | 423 | 367 | 417 | 564 | — | — | 635 | 445 | 389 | 470 | 469 | 623 | 604 | 545 | 537 |
| BC | 0.46 | 0.77 | 0.05 | 0.72 | 1.63 | 1.34 | 1.34 | 0.91 | 0.52 | 0.34 | 0.26 | 0.31 | 0.56 | 0.98 | 0.23 | 0.57 | 0.57 | 0.71 | 1.37 |
A dot on the chart and a dash in the table indicate missing data. Historical values do not describe today’s air quality.
How should I interpret the data and averaging period? →
OpenAQ ↗GIOS
AIR QUALITY ARCHIVE · Wrocław - Wiśniowa
Wrocław - Wiśniowa
Station code: Wrocław - Wiśniowa
Monthly monitoring station data.
PM2.5Lowest 11 2019-07Highest 39.3 2018-112018-11 - 2020-05
NO₂Lowest 34.1 2020-05Highest 48.7 2019-022018-11 - 2020-05
COLowest 430 2020-05Highest 809 2020-012018-11 - 2020-05
Scroll the chart or table sideways to see the full period.
| Pollutant | 2020-05 | 2020-04 | 2020-03 | 2020-02 | 2020-01 | 2019-12 | 2019-11 | 2019-10 | 2019-09 | 2019-08 | 2019-07 | 2019-06 | 2019-05 | 2019-04 | 2019-03 | 2019-02 | 2019-01 | 2018-12 | 2018-11 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 | 12 | 16.6 | 21.3 | 12.9 | 29.8 | 23.3 | 23.7 | 20 | 12.5 | 11.1 | 11 | 12.8 | 13.8 | 21.6 | 19.3 | 31.1 | 29.5 | 23.2 | 39.3 |
| NO₂ | 34.1 | 39.3 | 38.3 | 35.9 | 45 | 43.2 | 44 | 47.3 | 41.4 | 46.7 | 39.1 | 45.3 | 43.5 | 47 | 40.1 | 48.7 | 42 | 37 | 42.6 |
| CO | 430 | 529 | 604 | 498 | 809 | 666 | 645 | 661 | 595 | 561 | 487 | 530 | 499 | 505 | 537 | 752 | 733 | 657 | 759 |
A dot on the chart and a dash in the table indicate missing data. Historical values do not describe today’s air quality.
How should I interpret the data and averaging period? →
OpenAQ ↗GIOS
Environment and quality of life ratings · Wrocław
Archived ratings of the local environment: green spaces, cleanliness, noise and water quality. Opinion indicators are separate from pollutant concentration measurements.
| Indicator | Wrocław | Czech Republic | Slovakia | Lithuania | Hungary | Austria |
|---|---|---|---|---|---|---|
| Green and Parks in the City | 64% | 77% | 58% | 86% | 59% | 78% |
| particulate matter PM2.5 (µg/m³) | 25 | — | — | — | — | — |
| Pleasure of spending time in the city | 44% | 77% | 73% | 83% | 65% | 84% |
| particulate matter PM10 (µg/m³) | 32 | — | — | — | — | — |
| Air Pollution | 74% | 35% | 35% | 26% | 49% | 21% |
| Garbage Disposal | 59% | 74% | 65% | 71% | 65% | 84% |
| Availability and quality of drinking water | 59% | 84% | 87% | 91% | 80% | 91% |
| Cleanliness and tidiness | 55% | 65% | 57% | 78% | 52% | 82% |
| Noise and Light pollution | 50% | 44% | 41% | 30% | 45% | 34% |
| Water Pollution | 39% | 28% | 27% | 24% | 30% | 14% |
WEATHER THROUGH THE YEAR
What is the weather like throughout the year?
Choose a month to compare daytime and nighttime temperatures and the frequency of rain using historical weather data.
POWER
Wrocław · October
Mean daily maximum15.1°C
Mean daily minimum6.4°C
Days with rainfall ≥1 mm34.5%
Mean daily maximum temperatures by month · Bar scale starts at -15°C
2.3°Jan
5.1°Feb
9.3°Mar
14.1°Apr
18.7°May
24.8°Jun
25.8°Jul
25.9°Aug
21.4°Sep
15.1°Oct
7.7°Nov
3.5°Dec
NASA POWER: grid data covering the city. Weather history describes the climate; it is not a forecast or an air quality measurement.
View the data table
| Month | Mean daily maximum °C | Mean daily minimum °C | Days with rainfall ≥1 mm |
|---|---|---|---|
| January | 2.3 | -3.3 | 38.1% |
| February | 5.1 | -1.9 | 34.6% |
| March | 9.3 | 0.1 | 32.9% |
| April | 14.1 | 3.8 | 33.3% |
| May | 18.7 | 8.2 | 38.7% |
| June | 24.8 | 13.7 | 45.7% |
| July | 25.8 | 14.9 | 46.8% |
| August | 25.9 | 15 | 38.4% |
| September | 21.4 | 10.9 | 31% |
| October | 15.1 | 6.4 | 34.5% |
| November | 7.7 | 1.4 | 27.3% |
| December | 3.5 | -1.5 | 35.2% |
Air quality in nearby cities
All cities →Poland↗
Poznań
PM2.512.3
PM1015.1
µg/m³
PM2.5 · FairNO₂ 7.3O₃ 41
October 23, 202603:00
Poland↗
Gliwice
PM2.517.3
PM1020.8
µg/m³
PM2.5 · ModerateNO₂ 10.2O₃ 33
October 23, 202603:00
Poland↗
Częstochowa
PM2.517.3
PM1021.8
µg/m³
PM2.5 · ModerateNO₂ 10.3O₃ 39
October 23, 202603:00
Czech Republic↗
Ostrava
PM2.514.5
PM1016.4
µg/m³
PM2.5 · FairNO₂ 11.4O₃ 38
October 23, 202603:00
Poland↗
Katowice
PM2.524.9
PM1030.5
µg/m³
PM2.5 · ModerateNO₂ 18.6O₃ 30
October 23, 202603:00
Poland↗
Łódź
PM2.514.3
PM1017.5
µg/m³
PM2.5 · FairNO₂ 6.5O₃ 42
October 23, 202603:00
Poland↗
Bielsko-Biala
PM2.512.7
PM1014.7
µg/m³
PM2.5 · FairNO₂ 7.3O₃ 44
October 23, 202603:00
Poland↗
Krakow
PM2.519.8
PM1023.1
µg/m³
PM2.5 · ModerateNO₂ 11.3O₃ 41
October 23, 202603:00
Poland · air quality in other cities
WEATHER & SURROUNDINGS
Wrocław · weather forecast
Daily maximum and minimum temperatures. Forecast point: 51.1079, 17.0385.
Scroll the forecast to see the following days.
Wrocław · October 20, 2026: minimum temperature 7.3°C, maximum 13.3°C. Wind: 17.6 km/h. Humidity: 78%.
Full forecast: temperature, rainfall, wind and humidity
| Date | Day °C | Min °C | Max °C | Night °C | Rain mm | Wind m/s | Humidity % | Clouds % |
|---|---|---|---|---|---|---|---|---|
| 2026-10-20 | 11.5 | 7.3 | 13.3 | 12.1 | 1.3 | 4.9 | 78 | 100 |
| 2026-10-21 | 15.7 | 7.8 | 18.5 | 14.2 | 0.2 | 4.6 | 62 | 93 |
| 2026-10-22 | 10.5 | 7.5 | 12.4 | 7.5 | 19.3 | 5.4 | 95 | 100 |
| 2026-10-23 | 12.9 | 5.1 | 15.2 | 9.5 | 0.2 | 4.2 | 59 | 75 |
| 2026-10-24 | 11.6 | 6.2 | 12.6 | 6.2 | 0.2 | 4.4 | 58 | 56 |
| 2026-10-25 | 9.9 | 4.9 | 9.9 | 9.2 | 9.5 | 7.7 | 60 | 100 |
| 2026-10-26 | 10.7 | 6.3 | 12.2 | 7.5 | 6.7 | 4.8 | 72 | 23 |
| 2026-10-27 | 13.2 | 6.4 | 16.2 | 9.7 | 0.4 | 3.6 | 67 | 96 |
| 2026-10-28 | 13.2 | 7 | 14.9 | 7.9 | 0.2 | 7.9 | 54 | 10 |
| 2026-10-29 | 10.5 | 6.4 | 12.9 | 9.5 | 0.1 | 4.3 | 73 | 64 |
| 2026-10-30 | 11.5 | 8.9 | 14.5 | 8.9 | 0.1 | 3.2 | 78 | 100 |
| 2026-10-31 | 11.4 | 7.5 | 12.9 | 7.5 | 12.5 | 4.3 | 74 | 100 |
| 2026-11-01 | 9.9 | 5.1 | 13.1 | 8.7 | 0.2 | 3.7 | 70 | 98 |
| 2026-11-02 | 12.5 | 6.8 | 16 | 8.6 | 0.7 | 6.4 | 62 | 97 |
| 2026-11-03 | 11.4 | 6.3 | 13.6 | 6.7 | 3.2 | 4.3 | 55 | 96 |
| 2026-11-04 | 10.3 | 4.6 | 13.3 | 6.8 | 0.3 | 3.4 | 52 | 95 |
| 2026-11-05 | 10.3 | 5.1 | 13.7 | 6.9 | — | 4.1 | 57 | 11 |
| 2026-11-06 | 10.1 | 5.2 | 13.2 | 8.4 | — | 3.2 | 64 | 43 |
UV index by day · Wrocław
City data.
You can safely stay in the sun. Sunscreen only matters on very long exposure.
0-2 low3-5 moderate6-7 high8-10 very high11+ extreme
Scroll the forecast to see the following days.
Wrocław · October 22, 2026: UV index: 1.2 .
| Indicator | 2026-10-22 | 2026-10-23 | 2026-10-24 | 2026-10-25 | 2026-10-26 | 2026-10-27 | 2026-10-28 | 2026-10-29 | 2026-10-30 | 2026-10-31 | 2026-11-01 | 2026-11-02 | 2026-11-03 | 2026-11-04 | 2026-11-05 | 2026-11-06 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index | 1.2 | 2.5 | 2.3 | 2.1 | 2.5 | 1.3 | 1.8 | 1.5 | 0.9 | 2.2 | 2.1 | 1.8 | 1.3 | 2 | 2 | — |
AIR QUALITY QUESTIONS
Wrocław · air pollution - questions and answers
What do the latest air quality data show for Wrocław?
Wrocław - latest available concentrations (October 23, 2026, 03:00 local time): PM2.5: 16.4 µg/m³, PM10: 20.2 µg/m³, O₃: 35 µg/m³, NO₂: 9.5 µg/m³, SO₂: 3.1 µg/m³, CO: 221 µg/m³. These are hourly CAMS model values for a point representing the city.
When was PM2.5 highest in Wrocław over the past week?
The highest available daily mean PM2.5 was 37.2 µg/m³ (October 17, 2026). This comparison covers 7 days with data in the seven days before October 23, 2026. The day of the latest reading is excluded because it may be incomplete.
What period does the pollution history for Wrocław cover?
Available monthly means cover 2018-11 - 2020-05. The tables include PM2.5, PM10, O₃, NO₂, SO₂, CO, BC. Missing values are marked with a dash, not treated as zero. Monthly archives and current model data may come from different sources.
Is the PM2.5 concentration for Wrocław an AQI score?
No. PM2.5 and PM10 are concentrations in µg/m³. AQI is a separate index calculated using a defined scale. When comparing air quality, also check other pollutants, the date and the averaging period.
What UV index does the available forecast show for Wrocław?
For October 22, 2026, the forecast UV index is 1.2. The UV section also shows the following available days.
What wind speed is forecast for Wrocław?
For October 20, 2026, forecast wind speed is 17.6 km/h. The weather table includes wind, temperature and other available parameters for subsequent days.
PM2.5 · PM10 · NO₂ · O₃
Understanding air quality and pollution data
What do PM2.5 and PM10 mean?
PM2.5 and PM10 are fractions of airborne particulate matter. PM2.5 covers fine particles up to 2.5 micrometres in diameter, while PM10 covers particles up to 10 micrometres. Concentrations in µg/m³ tell you how many micrograms of particles are present in a cubic metre of air. Compare values over the same time period.
Where does the air pollution data come from?
The latest concentrations come from the CAMS atmospheric model via Open-Meteo for each city’s coordinates. Values describe a model area, so conditions on individual streets may differ. Historical monitoring station data is shown separately where available.
How does PM2.5 concentration differ from AQI?
PM2.5 is the concentration of one particle fraction, expressed in µg/m³. AQI is an index calculated using a particular scale and thresholds. The pollutant cards show concentrations. Our city ranking compares PM2.5; PM10, ozone, nitrogen dioxide and other available gases add to the picture of air quality.
Which dates do the values and charts cover?
Each current value has a data date and time. Current concentration cards show the latest available hour, daily charts summarise individual days, and monthly records let you compare longer periods. These values represent different time intervals.
How can I check pollution in my city?
Search for your city and open its air quality page. Start with PM2.5 and PM10, then check the other available pollutants and the data timestamp. Charts and tables help you compare concentrations over time. Weather and historical climate information complement the pollution data.