Pollutants and AQI Colors
Published
NanoView Pollutants and AQI Color Index
The NanoDetect PRO measures a range of indoor air quality pollutants. Each pollutant is classified into defined air quality levels that help users quickly understand current conditions.
This section explains the color index system used to represent air quality levels for:
• The overall Air Quality Index (AQI)
• Individual pollutant parameters across both the NanoView App and dashboard
Color Index Representation
Air quality levels are displayed using a consistent color scheme throughout the NanoView platform to provide intuitive, at-a-glance interpretation.
On the NanoView Dashboard, color indexing is applied to historical trend graphs, showing how air quality changes over time
For example, the historic trend graph below illustrates the color-coded representation of both Air Quality Index (AQI) and PM10 over a one-hour period
Within the NanoView App, colors are assigned to individual real-time pollutant readings, allowing users to quickly assess current air quality conditions.
Air Quality Index (AQI)
The Air Quality Index (AQI) represents the overall air quality status of the NanoDetect PRO sensor.
The AQI value is calculated using a weighted average of multiple individual pollutant parameters, providing a single, easy-to-understand indicator of overall indoor air quality.
|
0 - 50 |
Good |
|
51 - 100 |
Moderate |
|
101 - 150 |
Unhealthy for Sensitive Groups |
|
151 - 200 |
Unhealthy |
|
201 - 300 |
Very Unhealthy |
|
301 - 500 |
Hazardous |
STANDARD SENSORS
Particulate Matter (PM2.5)
|
PM2.5 Range (µg/m3) |
Air Quality Level |
|
0.0 - 9.0 |
Good |
|
9.1 - 35.4 |
Moderate |
|
35.5 - 55.4 |
Unhealthy for Sensitive Groups |
|
55.5 - 125.4 |
Unhealthy |
|
125.5 - 224.4 |
Very Unhealthy |
|
224.5 - 325.4 |
Hazardous |
Particulate Matter (PM10)
|
PM10 Range (µg/m3) |
Air Quality Level |
|
0 - 54 |
Good |
|
54.1 - 154 |
Moderate |
|
154.1 - 254 |
Unhealthy for Sensitive Groups |
|
254.1 - 354 |
Unhealthy |
|
354.1 - 424 |
Very Unhealthy |
|
424.1 - 604 |
Hazardous |
Carbon Dioxide (CO2)
|
CO2 Range (ppm) |
Air Quality Level |
|
400 - 800 |
Good |
|
801 - 1500 |
Moderate |
|
1501 - 2000 |
Unhealthy for Sensitive Groups |
|
2001 - 2500 |
Unhealthy |
|
2501 - 5000 |
Very Unhealthy |
|
5001 - 10000 |
Hazardous |
TVOC Index Scale
On the TVOC index scale, a reference baseline is always mapped to a value of 100 to keep interpretation simple.
• A TVOC index above 100 indicates that total volatile organic compound (TVOC) levels are higher than the average baseline.
• A TVOC index below 100 indicates that TVOC levels are lower than the average baseline.
This approach allows users to quickly understand whether indoor air quality conditions are improving or degrading relative to normal levels.
|
TVOC Range (Index) |
Air Quality Level |
|
1 - 100 |
Good |
|
101 - 150 |
Moderate |
|
151 - 200 |
Unhealthy for Sensitive Groups |
|
201 - 300 |
Unhealthy |
|
301 - 500 |
Very Unhealthy |
Temperature (oF | oC)
|
Temperature (oF) |
Temperature (oC) |
Air Quality Level |
|
64.4 - 77.0 |
18 - 25 |
Good |
|
60.8 - 64.4 & |
16 - 17.99 & |
Moderate |
|
50.0 - 60.8 & |
10 - 15.99 & |
Unhealthy for Sensitive Groups |
|
42.8 - 50.0 & |
5.99 - 10 |
Unhealthy |
|
<42.8 & >96.8 |
<5.99 & 35.99 |
Very Unhealthy |
Humidity (% RH)
|
Humidity (% RH) |
Air Quality Level |
|
40 - 50% |
Good |
|
35 - 39% & |
Moderate |
|
20 - 34% & |
Unhealthy for Sensitive Groups |
|
15 - 19% & |
Unhealthy |
|
1 - 14% & |
Very Unhealthy |
Nitrogen Oxide (NOX)
|
NOX Range (Index) |
Air Quality Level |
|
40 - 50% |
Good |
|
35 - 39% |
Moderate |
|
20 - 34% & |
Unhealthy for Sensitive Groups |
|
15 - 19% |
Unhealthy |
|
1 - 14% & |
Very Unhealthy |
Noise (dB)
|
Noise (dB) Range |
Quality Level |
|
<= 70dB |
Good |
|
< 70dB |
Unhealthy for Sensitive Groups |
OPTIONAL SENSORS
Nitrogen Dioxide (NO2)
|
NO2 Range (Index) |
Air Quality Level |
|
0 - 53 |
Good |
|
54 - 100 |
Moderate |
|
101 - 360 |
Unhealthy for Sensitive Groups |
|
361 - 649 |
Unhealthy |
|
650 - 1249 |
Very Unhealthy |
|
1250 - 2049 |
Hazardous |
Formaldehyde (HCHO)
|
HCHO Range (ppb) |
Air Quality Level |
|
0 - 53 |
Good |
|
54 - 100 |
Moderate |
|
101 - 360 |
Unhealthy for Sensitive Groups |
|
361 - 649 |
Unhealthy |
|
650 - 1249 |
Very Unhealthy |
|
1250 - 2049 |
Hazardous |
Carbon Monoxide (CO)
|
CO Range (ppm) |
Air Quality Level |
|
0 - 4.4 |
Good |
|
4.5 - 9.4 |
Moderate |
|
9.5 - 12.4 |
Unhealthy for Sensitive Groups |
|
12.5 - 15.4 |
Unhealthy |
|
15.5 - 30.4 |
Very Unhealthy |
|
30.5 - 50.5 |
Hazardous |
Sulphur Dioxide (SO2)
|
SO2 Range (ppb) |
Air Quality Level |
|
0 - 20 |
Good |
|
21 - 75 |
Moderate |
|
76 - 185 |
Unhealthy for Sensitive Groups |
|
186 - 304 |
Unhealthy |
|
305 - 500 |
Very Unhealthy |
|
>500 |
Hazardous |
Ammonia (NH3)
|
NH3 Range (ppb) |
Air Quality Level |
|
0 - 200 |
Good |
|
201 - 500 |
Moderate |
|
501 - 1700 |
Unhealthy for Sensitive Groups |
|
1701 - 2500 |
Unhealthy |
|
2501 - 5000 |
Very Unhealthy |
|
>5000 |
Hazardous |
Ozone (O3)
|
O3 Range (ppb) |
Air Quality Level |
|
0 - 54 |
Good |
|
55 - 70 |
Moderate |
|
71 - 85 |
Unhealthy for Sensitive Groups |
|
86 - 105 |
Unhealthy |
|
106 - 200 |
Very Unhealthy |
|
201 - 604 |
Hazardous |
Hydrogen (H2)
|
H2 Range (ppb) |
Air Quality Level |
|
0 - 0.1 |
Good |
|
0.11 - 0.5 |
Moderate |
|
0.51 - 1.0 |
Unhealthy for Sensitive Groups |
|
1.1 - 2.0 |
Unhealthy |
|
2.1 - 4.0 |
Very Unhealthy |
|
>4.0 |
Hazardous |
Hydrogen sulfide (H2S)
|
H2S Range (ppb) |
Air Quality Level |
|
0 - 1.4 |
Good |
|
1.5 - 7 |
Moderate |
|
8 - 30 |
Unhealthy for Sensitive Groups |
|
31 - 100 |
Unhealthy |
|
101 - 300 |
Very Unhealthy |
|
>300 |
Hazardous |
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