Particulate(2) COVID-19(2) Particulate matter(2) Evidence(2) Health(2) Heavy metals(2) SARS-CoV-2(2) filtration efficiency(1) much higher(1) formaldehyde(1) host defense(1) modulation(1) coking plant(1) public health(1) described(1) Li(1) Rural area(1) other respiratory virus(1) Italy(1) cause(1) miRNA(1) Immunity(1) indoor household dust(1) Pollution(1) viruses(1) Conjunctiva(1) cardiovascular diseases(1) GGT(1) pandemic of COVID-19(1) respiratory virus(1)