CPC Subgroup Additional Only
Y02A 50/2351 Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Full Title
in human health protection, e.g. against extreme weather > Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters > Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust