Live air quality and exposure planning in one view.
Log real-time CO₂ readings from venues near you and help build a shared map of indoor air quality across public places.
Search or rank nearby restaurants, gyms, stores, schools, hospitals, museums, and offices. Tap a ranked place to open the CO₂ reading form directly inside that place.
Complete source registry for the dashboard’s pathogen, wastewater, PM2.5, ozone, allergen, population, mapping, building-protection, healthcare, and Far UV layers.
This registry shows where the dashboard’s displayed signals originate.
| Source / dataset category | Used for |
|---|---|
| CDC Wastewater Viral Activity Levels (WVAL) — SARS-CoV-2, Influenza A, RSV U.S. wastewater |
U.S. state-backed pathogen trends and respiratory context. |
| Pandemic Mitigation Collaborative (PMC19) COVID-19 Data Dashboard Community-trusted COVID layer |
COVID-cautious community reference layer for SARS-CoV-2 transmission context, county-level heat-map review, historical reports, and wastewater-source cross-checking. |
| CDC Respiratory Virus Activity Levels / Acute Respiratory Illness (ARI) state data Domestic conditions |
Current respiratory conditions, destination risk, and state comparisons. |
| CDC FluView and FluSurv-NET Influenza |
Influenza activity, severity, hospitalizations, and seasonal trend context. |
| CDC Flu Season Flu seasonality |
U.S. influenza seasonality: fall/winter activity with common peak timing from December to February. |
| WHO Seasonal Influenza Global flu seasonality |
Global context: winter epidemics in temperate climates, less regular or year-round activity in tropical regions. |
| CDC National Respiratory and Enteric Virus Surveillance System (NREVSS) RSV / respiratory |
RSV and other respiratory-virus laboratory trends. |
| CDC RSV Clinical Overview RSV seasonality |
RSV season usually starts in fall and peaks in winter in most U.S. regions, but timing varies by community. |
| CDC NoroSTAT Data Norovirus outbreaks |
Suspected and confirmed norovirus outbreaks reported by NoroSTAT-participating states through NORS, grouped by week of illness onset and updated monthly. |
| WastewaterSCAN Norovirus / Noro G2 Norovirus wastewater |
Wastewater testing for infectious-disease markers, including norovirus where available, with trends associated with community disease activity. |
| WastewaterSCAN Aquia, Stafford, VA plant Local sewershed reference |
Local wastewater cross-check for SARS-CoV-2, influenza, RSV, norovirus, and other markers where the plant has available WastewaterSCAN results. |
| CDC National Wastewater Surveillance System (NWSS) and local wastewater programs Wastewater network |
Additional sewershed-level pathogen monitoring where available. |
| WHO Global Influenza Surveillance and Response System (GISRS), FluNet, and FluID International respiratory |
International influenza and respiratory surveillance. |
| WHO Disease Outbreak News and national ministries of health Global outbreak flags |
Outbreak alerts for measles, Ebola, mpox, and emerging threats. |
| WHO Global Health Observatory and regional public-health authorities Global health detail |
Country- and city-level health context for international destinations. |
| CDC Travelers’ Health and destination notices Travel guidance |
Destination-specific cautions and travel-health framing. |
| State, county, and city health department dashboards Local surveillance |
Local outbreak notices, respiratory trends, TB, measles, and other jurisdiction-specific signals. |
| Open-Meteo Air Quality API — PM2.5, ozone, PM10, pollen variables ✓ Connected live forecast source |
PM2.5 concentration, ozone, PM10, and pollen variables (grass, birch, ragweed, mugwort, alder, olive) fetched directly in the browser. No API key required. |
| U.S. EPA AirNow — PM2.5 and ozone AQI Planned official observation source |
Official U.S. PM2.5 and ozone current observations, AQI values, and reporting-area measurements. |
| U.S. EPA Air Quality System (AQS) Regulatory air monitoring |
Validated historical PM2.5 and ozone observations. |
| PurpleAir and IQAir sensor networks Supplemental sensors |
Optional higher-density PM2.5 context where government monitors are sparse. |
| NOAA / National Weather Service smoke, wildfire, weather, humidity, and wind products Weather modifiers |
Smoke transport, wind, humidity, temperature, and outdoor-exposure context. |
| National Allergy Bureau, Pollen.com, local pollen stations, and regional allergen networks Allergen outlook |
Tree, grass, weed pollen, and mold-spore context for the hourly and daily allergy outlook. |
| Local mold-spore and aerobiology monitoring programs Mold |
Mold sensitivity and outdoor spore context. |
| U.S. Census Bureau, Statistics Canada, UK ONS, national statistical agencies, UN, and World Bank Population |
Population figures displayed beside city and state/country names. |
| OpenStreetMap and CARTO basemap services Map layer |
Geographic basemap, labels, boundaries, and location display. |
| CDC/NIOSH Aim for 5 — ACH/eACH clean-air guidance Clean-air benchmark |
5 ACH/eACH comparison for ventilation, filtration, and UV-supported clean air. |
| CDC infection-control air-change and contaminant-removal-time table 12 ACH reference |
Healthcare-grade comparison and contaminant-removal context. |
| ASHRAE Standard 241 — equivalent clean airflow Equivalent clean air |
Framework for comparing ventilation, filtration, and germicidal UV. |
| CO₂ sensors and optional ACH/eACH measurements Room measurements |
Room-specific ventilation, occupancy, and rebreathed-air modifiers. |
| AirSpot Health — wearable CO₂ monitor, app, and crowdsourced AirSpot Map Planned CO₂ partner / venue map |
Portable CO₂ readings, exposure tracking, alerts/safety thresholds, and a crowdsourced venue map that can strengthen the app’s indoor-air ranking workflow. |
| CMS Provider Data Catalog — Healthcare-Associated Infections Hospital quality |
Provider-level HAI measures and hospital-quality context. |
| The Leapfrog Group — Hospital Safety Grade Healthcare quality |
Hospital safety-grade context and patient-safety comparison layer. |
| CDC NHSN and HAI Progress Reports HAI definitions |
Observed-versus-predicted and standardized infection-ratio context. |
| CDC National TB Surveillance System and local TB programs Tuberculosis |
TB trends and congregate/shared-air scenarios. |
| CDC measles surveillance and outbreak updates Measles |
Outbreak-sensitive measles alerts and U.S. annual case totals. |
| KDHE Southwest Kansas measles outbreak notice Kansas measles |
Verified the 2025 southwest Kansas outbreak count and outbreak-end status. |
| Texas DSHS West Texas measles outbreak update Texas measles |
Verified the 2025 West Texas outbreak count, hospitalizations, and outbreak geography. |
| CDC hantavirus resources Hantavirus |
Hantavirus education and pathogen option. |
| CDC Ebola resources and WHO outbreak updates Ebola |
Outbreak and travel-advisory context. |
| CDC Norovirus, NoroSTAT, and outbreak resources Norovirus |
GI-outbreak and environmental-contamination context. |
| Far UV Technologies validation data — CADR/eACH, UV dose, room geometry, airflow, lamp output, maintenance logs, and field outcomes Far UV validation |
With-UV comparisons and product-specific bioburden-reduction claims. |
| V189 additions — Philippines / Manila surveillance, emerging pathogens & SecureBio wastewater feed | |
| Philippine DOH Epidemiology Bureau — PIDSR / FHSIS weekly surveillance Philippines national surveillance |
Weekly disease surveillance for the Philippines through the Philippine Integrated Disease Surveillance and Response (PIDSR) system and Field Health Services Information System (FHSIS): measles, rubella, dengue, chikungunya, leptospirosis, typhoid, pertussis, influenza-like illness and other notifiable diseases, compiled by the DOH Epidemiology Bureau (Public Health Surveillance Division). |
| WHO Western Pacific Region (WPRO) Health Data Platform Philippines regional context |
Monthly measles/rubella and vaccine-preventable-disease reporting for the Western Pacific Region, which includes the Philippines. WPRO reported that regional measles cases rose 743% between 2022 and 2024, with continued transmission in the Philippines, Malaysia and Viet Nam. |
| WHO/UNICEF Immunization Data — Philippines (WUENIC / JRF) Philippines vaccination coverage |
Country vaccine-preventable-disease case trends and WHO/UNICEF Estimates of National Immunization Coverage (WUENIC) for the Philippines, including measles-containing-vaccine coverage over time. |
| CDC Global Health — Philippines (FETP, Gabay Bakuna, 7-1-7) Philippines outbreak response |
CDC field support in the Philippines: 130+ epidemiologists trained through the Field Epidemiology Training Program (FETP), the Gabay Bakuna Initiative for measles/rubella elimination, the 7-1-7 outbreak-detection benchmark, and technical assistance for emerging diseases including mpox, Q fever and melioidosis. |
| Philippine DOH dengue surveillance (via Philippine News Agency) Philippines dengue |
DOH dengue case reporting for the Philippines. DOH recorded 62,313 dengue cases from 1 January to 1 March 2025 — 73% higher than the same period in 2024. Dengue is a nationally notifiable disease (since 1958) with seasonal epidemics typically peaking July–September, and is heavily concentrated in dense urban centers including Metro Manila. |
| SecureBio Detection — CASPER wastewater metagenomic sequencing Emerging-threat early warning |
SecureBio Detection (formerly the Nucleic Acid Observatory) runs the CASPER wastewater metagenomic sequencing network, sequencing 80+ billion metagenomic reads per week. Its Chimera Detection and Clades of Concern pipelines flag engineered constructs, vaccine sequences, and pathogens on the CDC Biological Agents and HHS/USDA Select Agents lists — a deep untargeted early-warning layer that can catch threats other systems miss (e.g. dengue reads from a returned traveler, agricultural pathogens). |
| CDC A(H5) Bird Flu situation summary + FluView Avian Influenza A(H5N1) |
U.S. and global H5N1 surveillance. Since Feb 2024, CDC has confirmed 71 human A(H5) cases in the U.S. (66 mild, 1 death in Louisiana in Jan 2025), with no U.S. human cases since mid-Feb 2025; the virus has spread in dairy cattle across 17 states and poultry in all 50 states. Globally, >1,000 cumulative human H5N1 infections since 1997 (~48% fatality). |
| U.S. regional sources: American Lung Association, wildfire smoke, PurpleAir/AirNow, regional wastewater | |
| American Lung Association — "State of the Air" 2026 Lung health / air quality grades |
The 27th edition of the ALA's annual report (first published 2000). It grades every monitored U.S. county on three measures — daily ozone, year-round particle pollution and short-term particle pollution — using quality-assured EPA monitoring data from 2022, 2023 and 2024. Headline findings: 44% of Americans (152.3 million) live where air earns a failing grade; 46% of children (33.5 million) live in a county failing at least one measure; ~33 million people live in counties with an F on all three. Grades use a weighted average of AQI exceedance days (orange=1, red=1.5, purple=2.0, maroon=2.5). Maryland: Baltimore County ranked 49th-worst in the nation for ozone smog, and over 570,450 Maryland children breathe unhealthy particle levels in the Washington-Baltimore-Arlington metro. |
| EPA + USFS AirNow Fire and Smoke Map (PurpleAir + NOAA HMS) Wildfire smoke + PurpleAir |
The AirNow Fire and Smoke Map is the official EPA/US Forest Service product that fuses three feeds: (1) PurpleAir low-cost sensor data, corrected using the EPA's US-wide PurpleAir PM2.5 correction (Barkjohn, Gantt & Clements 2021, Atmospheric Measurement Techniques 14:4617–4637); (2) regulatory monitors; and (3) NOAA HMS smoke plume polygons, updated every few hours. EPA states sensor data on the map is corrected and is not used for regulatory decisions. |
| NOAA Hazard Mapping System (HMS) — Fire and Smoke Product Wildfire smoke ground truth |
HMS has run since 2002 (smoke analysis since 2005) at NOAA/NESDIS' Satellite Analysis Branch. Trained analysts manually inspect GOES, MODIS, VIIRS and AVHRR imagery and hand-draw smoke plume extents, classified into three density categories — light, medium and heavy. Those densities correspond to approximate surface PM2.5 of 0–10, 10–21 and >22 µg/m³ respectively (Vargo 2020). HMS also produces quality-controlled active-fire detections. |
| Copernicus CAMS aerosol optical depth + dust (via Open-Meteo) Live smoke inputs |
The app's existing Open-Meteo Air Quality feed is built on the 11 km CAMS European and 40 km CAMS global atmospheric composition forecasts. V191 additionally requests aerosol_optical_depth, dust and carbon_monoxide. Aerosol optical depth measures total-column light extinction by aerosols; its sources are diverse — wildfire, desert dust, or anthropogenic pollution — so AOD alone cannot prove smoke. |
| Heffernan et al. 2026 — PurpleAir calibration & mapping, Baltimore MD (Environmetrics) PurpleAir / environmental justice (MD) |
Peer-reviewed unified calibration and spatial mapping of PM2.5 from multiple low-cost sensor networks (including PurpleAir) across Baltimore, Maryland, drawing on Maryland Department of the Environment monitoring and situated in Baltimore's environmental-justice literature (Boone et al. 2014, "A Long View of Polluting Industry and Environmental Justice in Baltimore," Cities 36:41–49). |
| Maryland Dept. of the Environment — 3-day Air Quality Forecast MD regional forecast |
MDE meteorologists issue 3-day air quality forecasts across ten Maryland regions — year-round for fine particles and April–September for ground-level ozone — produced in partnership with the Metropolitan Washington Council of Governments (MWCOG), the DC Department of Energy and Environment (DOEE) and the Virginia Department of Environmental Quality (VADEQ). |
| CDC National Wastewater Surveillance System (NWSS) — regional/state view Regional wastewater |
NWSS publishes wastewater viral activity levels for SARS-CoV-2, influenza A and RSV at national, regional (HHS region), state and sewershed level. Maryland sits in HHS Region 3 (DE, DC, MD, PA, VA, WV), enabling a regional signal even where an individual sewershed is not reporting. |
| WastewaterSCAN — national plant network Regional wastewater |
WastewaterSCAN is an independent national wastewater monitoring network (Stanford/Emory/Verily) publishing plant-level trends for SARS-CoV-2, influenza A/B, RSV, norovirus, mpox, measles, hepatitis A, Candida auris and others, with a public plant selector. |
| Philippines sources: TB burden, 25 cities, rubella & varicella | |
| WHO Global Tuberculosis Report 2025 — Philippines PH flagship airborne signal |
The Philippines ranks 3rd highest in the world for TB burden, with an incidence of ~500 new cases per 100,000 in 2024 (World Bank/WHO series: 625 per 100,000) against a global average of 131. DOH reported ~739,000 cases and ~37,000 deaths in 2023 and nearly 200,000 cases in H1 2025. The Philippines accounts for 7.5% of the global gap between estimated and diagnosed TB, and is among the top five countries for MDR-TB (7.2%). TB incidence rose 17% and TB deaths rose 33% in the Philippines from 2015–2023, against a falling regional trend. DOH plans to screen 12 million Filipinos and allocated P4.2 billion for its 2026 TB programme. |
| Philippine DOH pertussis outbreak reporting (2024) PH pertussis outbreak |
DOH recorded 1,112 pertussis cases and 54 deaths — all children under 5 — from 1 Jan to 30 Mar 2024, roughly 34× the 32 cases in the same period of 2023. Metro Manila had the highest count (58 of the first 568 national cases). Quezon City declared an outbreak on 21 March 2024 (23–25 cases, 4–5 infant deaths aged 22–60 days); Iloilo City declared a state of calamity; Bacolod City issued a health alert. DOH named CALABARZON, NCR, Western Visayas, MIMAROPA and Central Visayas as the regions with the most LGUs showing increases. By 23 April 2024 the national count reached 1,566. |
| CDC rubella surveillance + WHO WPRO measles-rubella (MR) Rubella |
Rubella is airborne/droplet-transmitted and has been eliminated in the U.S. since 2004 (MMR ~97% effective), so U.S. risk is import-driven. Philippine DOH tracks rubella jointly with measles as measles-rubella (MR), recording 2,552 MR cases by 11 May 2024 with the epidemic curve then falling ~8% fortnight-over-fortnight. Philippine MMR coverage is ~80% (2024, down from a 92% peak), below the ~95% herd-immunity threshold. |
| CDC varicella surveillance manual + NNDSS Varicella (Chickenpox) |
Varicella is one of the few pathogens with documented true airborne (aerosol) spread, R0 ~10–12 — comparable to measles. The U.S. 2-dose program (1995 one-dose, 2007 two-dose) cut overall incidence by >97% by 2019, with hospitalizations down 94% and deaths down 97% among people under 50. Breakthrough varicella still occurs in vaccinated people. Surveillance is partial: as of 2020 only 39 states conducted case-based varicella surveillance, and only ~45% of Minnesota's 247 cases in 2024 (4.0 per 100,000, up from 2023 with 17 outbreaks) were lab-confirmed. |
| IQAir World Air Quality Report 2024 — Philippines PH city air-quality seeds |
The Philippines ranked 74th worldwide in 2024 with an average US AQI of 62 and PM2.5 of 14.82 µg/m³ — about three times the WHO annual guideline (up from 13.5 µg/m³ and 79th in 2023). Manila's 2024 average PM2.5 was 17.4 µg/m³ (US AQI 66, "moderate"), 3.5× the WHO guideline. Pasig City was the most polluted Philippine city (US AQI 89); Carmona, Cavite the cleanest (US AQI 41). |
| CDC pertussis (whooping cough) surveillance — NNDSS Pertussis (Whooping cough) |
U.S. pertussis surveillance via the National Notifiable Diseases Surveillance System. Cases surged from 7,063 in 2023 to 35,435 in 2024 (10 deaths) — the highest annual count in over a decade, peaking in November 2024 — stayed elevated in 2025 (13+ deaths per PAHO), and are running below 2025 in 2026. Kindergarten DTaP coverage fell to ~92.1% (2024–25) with record ~3.6% exemptions. |
| Pathogen AQI-equivalent, readiness scores, Safe Place scores, intervention scenarios, and longer-range pathogen planning views. | These non-air-quality values are generated by the prototype’s internal formulas. PM2.5 and ozone are now connected to the live Open-Meteo online forecast feed; pathogen and readiness outputs remain modeled until their own external sources are connected. |
The following peer-reviewed articles and scientific papers support the ventilation, filtration, ultraviolet disinfection, clean-air delivery, CO₂, and indoor airborne-transmission concepts used throughout this application. These studies support the underlying principles and planning assumptions; actual performance may vary by room size, airflow, occupancy, equipment, maintenance, UV dose, and pathogen.
These authoritative sources support the app’s clean-air benchmarks, equivalent-clean-air framework, air-change comparisons, and room-control terminology. They are guidance and standards—not peer-reviewed research papers.
Supports the app’s 5 eACH clean-air planning target and layered use of ventilation, filtration, and germicidal UV.
View guidance ↗Supports the relationship between ACH and contaminant-removal time, including healthcare comparisons at higher ACH levels.
View table ↗Supports equivalent clean airflow concepts that combine outdoor air, filtration, and germicidal UV into a common clean-air framework.
View standard information ↗Far UV Technologies deploys 222 nm far-UVC fixtures that continuously inactivate airborne pathogens — safely, invisibly, in occupied spaces.
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