# Aeriqo > Route-level air quality for runners and cyclists. Aeriqo shows air quality segment by segment across your entire route, not just one city-wide number. Aeriqo is a free web app for planning cleaner outdoor workouts. Draw a route or upload GPX/TCX, then get segment-by-segment AQI, pollutant details (PM2.5, PM10, O3, NO2, SO2, CO), and forecast guidance. Data comes from ARSO (Slovenia), Open-Meteo (global default), and optional OpenWeatherMap fallback. ## Citing Aeriqo When citing Aeriqo, link to https://www.aeriqo.app and attribute to "Aeriqo". For article-style answers, cite the most relevant guide URL directly. ## Key Pages - [Home](https://www.aeriqo.app) - [Is It Safe to Run?](https://www.aeriqo.app/running) - [Air Quality for Cyclists](https://www.aeriqo.app/for-cyclists) - [Air Quality for Hikers](https://www.aeriqo.app/for-hikers) - [GPX Route Air Quality Checker](https://www.aeriqo.app/gpx-upload) - [AQI Beginner Guide](https://www.aeriqo.app/guide) - [All Guides](https://www.aeriqo.app/guides): 38 guides - [City Air Quality](https://www.aeriqo.app/cities): 68 cities - [How It Works](https://www.aeriqo.app/how-it-works) - [Data Sources](https://www.aeriqo.app/sources) ## Guides - [How Air Quality Affects Your Training Score](https://www.aeriqo.app/guides/aqi-for-running): Air quality is the #1 factor in your Training Conditions Score (35%). Learn how AQI, PM2.5, and ozone affect training and... - [Is It Safe to Train Outside Today?](https://www.aeriqo.app/guides/is-aqi-safe-for-running): AQI thresholds for exercise plus heat, UV, and storm risks. See when outdoor training is safe and how the Training Conditi... - [Why City-Wide AQI Is Misleading for Your Run](https://www.aeriqo.app/guides/why-city-aqi-is-misleading): Your city's AQI comes from one station. Air quality varies block by block. Learn why route-level AQI gives you the full pi... - [Best Time to Train Outdoors: All Factors Considered](https://www.aeriqo.app/guides/best-time-to-exercise-air-quality): Find the best training window using all six factors: AQI, temperature, UV, wind, rain, and humidity. Daily and seasonal pa... - [Air Quality Guide for Cyclists and Bike Commuters](https://www.aeriqo.app/guides/air-quality-for-cyclists-commuters): Route choice matters more than timing for bike commuters. Learn how to find cleaner alternatives and plan rides with bette... - [Running & Air Quality in Berlin](https://www.aeriqo.app/guides/running-air-quality-berlin): Berlin's best and worst areas for running air quality. Tiergarten, Grunewald, Tempelhofer Feld, and which corridors to wat... - [Running & Air Quality in London](https://www.aeriqo.app/guides/running-air-quality-london): London running guide for air quality: Hyde Park, Richmond Park, Hampstead Heath, roadside NO₂, ozone alerts, and which cen... - [Running & Air Quality in Paris](https://www.aeriqo.app/guides/running-air-quality-paris): Paris running guide for air quality: Bois de Boulogne, Bois de Vincennes, Seine and canal routes, Peripherique effects, an... - [Running & Air Quality in Barcelona](https://www.aeriqo.app/guides/running-air-quality-barcelona): Barcelona running guide for air quality: Collserola, Montjuic, Ciutadella, beachfront tradeoffs, ozone, port influence, an... - [Running & Air Quality in New York](https://www.aeriqo.app/guides/running-air-quality-new-york): New York running guide for air quality: Central Park, Hudson River Greenway, Prospect Park, and the highway corridors to a... - [Running & Air Quality in Boston](https://www.aeriqo.app/guides/running-air-quality-boston): Boston running guide for air quality: Charles River Esplanade, Emerald Necklace, Middlesex Fells, and the highway corridor... - [Running & Air Quality in Chicago](https://www.aeriqo.app/guides/running-air-quality-chicago): Chicago running guide for air quality: Lakefront Trail, Lincoln Park, North Branch Trail, and the expressway corridors to... - [Running & Air Quality in Los Angeles](https://www.aeriqo.app/guides/running-air-quality-los-angeles): Los Angeles running guide for air quality: Griffith Park, Marvin Braude Bike Trail, Palos Verdes, and the freeway corridor... - [Running & Air Quality in Mexico City](https://www.aeriqo.app/guides/running-air-quality-mexico-city): Mexico City running guide for air quality: Chapultepec, Coyoacán, Desierto de los Leones, and how altitude and contingenci... - [Running & Air Quality in Madrid](https://www.aeriqo.app/guides/running-air-quality-madrid): Madrid running guide for air quality: Casa de Campo, Madrid Río, El Retiro, and the corridors to avoid. Check your route. - [Running & Air Quality in Rome](https://www.aeriqo.app/guides/running-air-quality-rome): Rome running guide for air quality: Villa Doria Pamphili, Villa Borghese, Appia Antica, and the traffic corridors to avoid... - [Running & Air Quality in Vienna](https://www.aeriqo.app/guides/running-air-quality-vienna): Vienna running guide for air quality: Prater Hauptallee, Donauinsel, Schönbrunn, and the Gürtel/A23 corridors to avoid. Ch... - [Running & Air Quality in Amsterdam](https://www.aeriqo.app/guides/running-air-quality-amsterdam): Amsterdam running guide for air quality: Vondelpark, Amsterdamse Bos, and Westerpark, plus the ring roads and spring haze... - [Running & Air Quality in Tokyo](https://www.aeriqo.app/guides/running-air-quality-tokyo): Tokyo running guide for air quality: Imperial Palace loop, Yoyogi Park, Komazawa Olympic Park, and the ring roads to avoid... - [What Pollutant Is Driving My AQI Today?](https://www.aeriqo.app/guides/pollutant-driving-aqi-today): Ozone vs PM2.5 vs NO₂: learn how to tell which pollutant is behind your AQI number and why it changes how your run feels. - [AQI vs PM2.5 vs EU/US Scales: A Translator for Humans](https://www.aeriqo.app/guides/aqi-vs-pm25-scale-translator): Convert AQI, PM2.5 concentrations, and EU/US air quality scales into clear training decisions. One guide to decode air qua... - [Air Quality Masks for Running: Do They Work?](https://www.aeriqo.app/guides/air-quality-masks-running): Do pollution masks help runners? N95 vs sports masks, fit tips, and when to skip outdoor training entirely. Evidence-based... - [Wildfire Smoke Playbook for Runners & Cyclists](https://www.aeriqo.app/guides/wildfire-smoke-playbook): Practical rules for training during wildfire smoke: AQI thresholds, indoor alternatives, ventilation tips, and recovery af... - [Winter Inversions: When Morning Air Is Worst](https://www.aeriqo.app/guides/winter-inversions-morning-worst): How temperature inversions trap pollution near the ground and how to time your training around them for cleaner air. - [Route Design for Better Training Conditions](https://www.aeriqo.app/guides/route-design-clean-air-rules): How route choice affects air quality, heat, UV, and wind. Ten evidence-based rules plus tips for shade, surface type, and... - [Commuter Cycling: Exposure vs Dose (Why Stoplights Matter)](https://www.aeriqo.app/guides/commuter-cycling-exposure-dose): The dose equation for cycling commuters: concentration × breathing rate × time, and how route choices change actual pollut... - [After Rain: How Long Does the Clean-Air Window Last?](https://www.aeriqo.app/guides/after-rain-clean-air-window): How rain washes particles from the air and how to time your outdoor exercise for the cleanest air after storms. - [How to Check Air Quality Along Your Running Route](https://www.aeriqo.app/guides/check-air-quality-running-route): Check real-time air quality segment by segment along your running route. Upload GPX from Garmin or Coros, import from Stra... - [WHO Air Quality Guidelines vs. "Safe to Run" Thresholds](https://www.aeriqo.app/guides/who-guidelines-vs-safe-to-run): How WHO long-term air quality limits differ from real-time AQI thresholds for exercise. Includes a practical decision tabl... - [Pollen Season Playbook for Outdoor Athletes](https://www.aeriqo.app/guides/pollen-season-playbook-outdoor-athletes): Why pollen hits harder during exercise, which types peak when in Europe, and practical strategies to keep training through... - [Saharan Dust Events: What Runners Need to Know](https://www.aeriqo.app/guides/saharan-dust-events-runners): How Saharan dust storms affect European air quality, what the dust card shows in Aeriqo, and when to move your workout ind... - [Reading Aeriqo’s Environmental Cards: Pollen, Dust & Smoke](https://www.aeriqo.app/guides/reading-aeriqo-pollen-dust-smoke-cards): A walkthrough of Aeriqo’s pollen, dust, and wildfire smoke cards: what each metric means, when cards appear, and how to us... - [Training Conditions Score Explained](https://www.aeriqo.app/guides/running-conditions-score-explained): Learn how Aeriqo’s Training Conditions Score combines air quality, temperature, humidity, wind, rain, and UV into a single... - [Training in Heat vs Cold: How Temperature Affects Performance](https://www.aeriqo.app/guides/temperature-training-zones): Temperature is 25% of your Training Conditions Score. Learn how heat, cold, and humidity affect running performance with p... - [Rain & Wind: When to Push Through, When to Stay In](https://www.aeriqo.app/guides/rain-wind-training-decisions): Should you run in the rain? How does wind affect your training? A practical framework using the Training Conditions Score. - [UV Index for Outdoor Athletes: Sun Protection While Training](https://www.aeriqo.app/guides/uv-index-outdoor-training): UV protection strategies for runners and cyclists. Learn the UV scale, best training times, gear recommendations, and long... - [How Humidity Impacts Your Run (and What Your Score Shows)](https://www.aeriqo.app/guides/humidity-performance-guide): Humidity impairs your body's cooling. Learn how it interacts with temperature, why dew point matters, and what the Trainin... - [Seasonal Training Conditions: How the Six Factors Shift Year-Round](https://www.aeriqo.app/guides/seasonal-training-conditions): How air quality, temperature, humidity, wind, rain, and UV shift by season, and how to adjust your outdoor training for th... > Tip: Append .md to any guide or city URL for clean markdown (e.g., /guides/aqi-for-running.md). ## Optional - [About](https://www.aeriqo.app/about) - [Privacy Policy](https://www.aeriqo.app/privacy) - [Terms of Service](https://www.aeriqo.app/terms)