1、pm2.5和pm10的计算
PM10a=PM10+PM25a
PM25a=PM25+BC+OC+SOA1+SOA2+SOA3+SOA4+SOA5+SOA6+ANA+ASO4+ANO3+ACL+ANH4
或者：
names = (/"A25I","A25J","AECI","AECJ","ANH4I", "ANH4J","ANO3I","ANO3J","AORGAI","AORGAJ", "AORGBI","AORGBJ","AORGPAI","AORGPAJ", "ASO4I","ASO4J","ASOIL","ACORS","ASEAS"/)
2、单位换算
1 ppm=1000ppb
1mg/m3=1000ug/m3
ppb—->>>ug/m3 n*分子量/22.4
ug/m3—>>>ppb n*22.4/分子量