Handan　is　a　typical　city　affected　by　regional　particulate　pollution.　In　order　to　investigate　particulate　matter　(PM)　characterization,　source　contributions　and　health　risks　for　the　general　populations,　we　collected　PM　samples　at　two　sites　affected　by　a　pollution　event　(12-18　May　2020)　during　the　COVID-19　pandemic　and　analyzed　the　major　components　(SNA,　OCEC,　WSIIs,　and　metal　elements).　A　PCA-MLR　model　was　used　for　source　apportionment.　The　carcinogenic　and　non-carcinogenic　risks　caused　by　metal　elements　in　the　PM　were　assessed.　The　results　show　that　the　renewal　of　old　neighborhoods　significantly　influences　local　PM,　and　primarily　the　PM10;　the　average　contribution　to　PM10　was　27　mu　g/m(3).　The　source　apportionment　has　indicated　that　all　other　elements　came　from　dust,　except　Cd,　Pb　and　Zn,　and　the　contribution　of　the　dust　source　to　PM　was　60.4%.　As　PM2.5　grew　to　PM10,　the　PM　changed　from　basic　to　acidic,　resulting　in　a　lower　NH4+　concentration　in　PM10　than　PM2.5.　The　carcinogenic　risk　of　PM10　was　more　than　1　x　10(-6)　for　both　children　and　adults,　and　the　excess　mortality　caused　by　the　renewal　of　the　community　increased　by　23%.　Authorities　should　pay　more　attention　to　the　impact　of　renewal　on　air　quality.　The　backward　trajectory　and　PSCF　calculations　show　that　both　local　sources　and　short-distance　transport　contribute　to　PM-local　sources　for　PM10,　and　short-distance　transport　in　southern　Hebei,　northern　Henan　and　northern　Anhui　for　PM2.5,　SO2　and　NO2.