Hi... it depends , how long time do you monitoring these pollutants ? If you considering for one year the monitoring I consider the API equipment instrument !!! There are some devices that you can use to measurement the gas pollutants for minutes !!!

I don't think, that you will find a one tandem instrument for all these measurements.

regards,

GB

Yep , of course , but the sensitive , accuracy, uncertainties, and interferences is very the most commun in this type equipments (one tandem instruments )

good bye 👋

For some of your measurements, like NOx, SO2, O3 there is good equipment available, even portable. You could consult Horiba on this kind of equipment. Als the larger parts can be measured. Concerning VOCs and TVOCs you have to be specific, because measuring devices depend on what exactly you want to measure. Smaller particles are an issue. There are measuring devices, but I would not call them portable. Concerning accuracy: even if the measuring devices themselves are quite accurate (if you know how to work with them) they only measure locally. In our lab that is not a big issue as we measure exhaust gases. However, then we know where to measure.

In that respect I do agree with mr Fuentes Garcia (sorry for not writing the accent on the i): you ask a lot and will not find that in a single, portable device.

Hi Dileep Gupta have you heard of AQMesh sensors? They are small sensors capable of measuring up to 6 gases (NO, NO2, O3, CO, CO2, SO2, H2S) and particulate (PM1, PM2.5, PM10, TPC). You can see their performance results here ( https://www.aqmesh.com/performance/) to get an idea.

For TVOCs, there is also a small handheld PID sensor called the AmbiVOC. Feel free to get in touch if you want more information. Happy to help.