Estimation of In Situ pH on PM 2.5 in Hong Kong Using Online Ionic ...
Estimation of In Situ pH on PM 2.5 in Hong Kong Using Online Ionic ...
Estimation of In Situ pH on PM 2.5 in Hong Kong Using Online Ionic ...
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Pr<strong>in</strong>cipal Comp<strong>on</strong>ent Aanalysis: Identify<strong>in</strong>g major<br />
factors <strong>in</strong>fluenc<strong>in</strong>g <str<strong>on</strong>g>pH</str<strong>on</strong>g> IS<br />
Factor Load<strong>in</strong>g<br />
1 2 3 4<br />
P Cl- -.952 -.070 -.098 .070<br />
P Na+ -.901 -.096 -.005 .262<br />
P NH4+ .868 .442 -.157 -.132<br />
R +/- .483 .841 -.079 .048<br />
R N/S .432 .819 .317 .022<br />
P SO4= .391 -.804 -.433 -.069<br />
<str<strong>on</strong>g>pH</str<strong>on</strong>g> IS .155 .750 -.113 .603<br />
P NO3- .030 .123 .988 -.056<br />
RH -.379 .089 -.028 .906<br />
R +/-<br />
: (equivalent c<strong>on</strong>centrati<strong>on</strong> ratio <str<strong>on</strong>g>of</str<strong>on</strong>g> total cati<strong>on</strong>s and ani<strong>on</strong>s).<br />
R N/S<br />
: (ratio <str<strong>on</strong>g>of</str<strong>on</strong>g> NH 4+<br />
and SO 4<br />
2-<br />
mole c<strong>on</strong>centrati<strong>on</strong>)<br />
15
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