# Polluting agents generated by road traffic in a city [closed]

I want to measure the air quality according to road traffic in a city. What are the polluting agents (generated by fuel combustion) strictly related and generated by road vehicles that is worth measuring?

Among $\ce{CO}$, $\ce{CO2}$, $\ce{NO_$x$}$, PM2.5, PM10, $\ce{NH3}$, $\ce{O3}$, $\ce{SO2}$ which are the most significative? Should I add or remove any agent?

• You might also want consider the metals which appear in road dust, I recall having seen some work on neutron activation anaylsis of dusts collected near roads. The rubber tyres are likely to contain some metals such as zinc. – Nuclear Chemist May 7 '18 at 16:12
• That's a homework assignment, isn't it? – Karl May 7 '18 at 19:02
• No, I am asking for a real project. There are different electronic devices capable of measuring different agents and I want understand what I should look for. – Francesco Boi May 8 '18 at 7:15
• Why has it been tagged as opinion based? – Francesco Boi May 8 '18 at 13:45
• @FrancescoBoi Because it's very arbitrary what pollutant is significant. For whom? People who are astmathic? Pregnant? Pedestrians or people in nearby flats? Etc. – Karl May 8 '18 at 17:57