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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L<strong>in</strong>ear Regressi<strong>on</strong>: <strong>in</strong>-situ <str<strong>on</strong>g>pH</str<strong>on</strong>g> <strong>in</strong> HK is welldescribed<br />
us<strong>in</strong>g R +/- and RH<br />
<str<strong>on</strong>g>pH</str<strong>on</strong>g> IS<br />
y = 0.95 x + 0.00<br />
= 4.94R<br />
+ /-<br />
+ 3.11RH<br />
−<br />
5.70<br />
Calculated <str<strong>on</strong>g>pH</str<strong>on</strong>g> IS us<strong>in</strong>g<br />
regressi<strong>on</strong> l<strong>in</strong>e<br />
(a) L<strong>in</strong>ear regressi<strong>on</strong> variables: R +/- and RH<br />
5<br />
4<br />
3<br />
R 2 = 0.93<br />
2<br />
1<br />
0<br />
-1<br />
-2<br />
-3<br />
-3 -2 -1 0 1 2 3 4 5<br />
AIM-derived <str<strong>on</strong>g>pH</str<strong>on</strong>g> IS<br />
16
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