State;
Key;
Joint;
Laboratory;
of;
Environmental;
Simulation;
and;
Pollution;
Control,;
College;
of;
Environmental;
Sciences,;
Peking;
University,;
Beijing;
100871,;
China;
State;
Key;
Joint;
Laboratory;
of;
Environmental;
Simulation;
and;
Pollution;
Control,;
College;
of;
Environmental;
Sciences,;
Peking;
University,;
Beijing;
100871,;
China;
State;
Key;
Joint;
Laboratory;
of;
Environmental;
Simulation;
and;
Pollution;
Control,;
College;
of;
Environmental;
Sciences,;
Peking;
University,;
Beijing;
100871,;
China;
precipitation,; particles,; ions,; organic; acids,; scavenging.;