Characterization of Odorous Compounds (VOC and Carbonyl Compounds) in the Ambient Air of Yeosu and Gwangyang, Large Industrial Areas of South Korea
Table 8
(a) Pearson correlation coefficients between different carbonyl compounds. (b) Pearson correlation coefficients between carbonyl compounds and other air quality parameters.
(a)
Sites
Compounds
FRML
ACTL
PPNL
MEK
BTL
iVAL
YI
ACTL
0.838*
PPNL
0.356*
0.455*
MEK
0.507*
0.320*
−0.151
BTL
0.144
0.274*
0.164
−0.061
iVAL
0.099
0.074
0.155
0.077
−0.053
VAL
0.074
0.148
0.149
0.168
−0.063
−0.039
YR
ACTL
0.821*
PPNL
0.638*
0.796*
MEK
0.363*
0.209
0.061
BTL
0.287*
0.205
0.096
−0.014
iVAL
0.328*
0.287*
0.385*
0.385*
−0.069
VAL
0.397*
0.301*
0.032
−0.009
0.340*
0.189
GI
ACTL
0.428*
PPNL
0.266*
0.485*
MEK
0.064
0.022
−0.063
BTL
0.439*
0.293*
0.041
−0.081
iVAL
0.011
0.050
0.001
0.356*
0.120
VAL
0.271*
0.141
0.303*
0.389*
−0.102
0.245*
GR
ACTL
0.584*
PPNL
0.452*
0.697*
MEK
0.088
0.001
−0.057
BTL
−0.028
0.004
−0.040
0.020
iVAL
0.040
0.045
−0.046
0.029
−0.021
VAL
0.123
0.095
0.059
0.057
−0.039
0.179
SC
ACTL
0.271*
PPNL
0.120
0.713*
MEK
0.425*
0.251*
−0.123
BTL
−0.066
−0.113
−0.091
−0.171
iVAL
−0.054
0.426*
0.166
0.091
−0.042
VAL
0.122
−0.118
0.004
−0.229*
0.044
−0.088
Correlation coefficients are significant at a level of 0.05. FRML: formaldehyde; ACTL: acetaldehyde; PPNL: propionaldehyde; MEK: methyl ethyl ketone; BTL: butyraldehyde. iVAL: i-valeraldehyde; VAL: n-valeraldehyde.
(b)
Sites
Compounds
SO2
PM10
O3
NO2
CO
Temp (°C)
Wind speed (m/s)
YI
FRML
0.225*
0.298*
0.532*
0.016
−0.175
0.276*
−0.160
ACTL
0.448*
0.365*
0.279*
0.230*
0.093
0.021
−0.072
PPNL
0.345*
0.076
0.053
0.168
0.126
0.051
−0.074
MEK
−0.089
0.139
0.237*
−0.023
−0.176
0.134
−0.267*
BTL
0.575*
0.167
0.130
−0.019
−0.007
0.014
0.236*
iVAL
−0.016
0.014
0.275*
−0.125
−0.019
0.090
0.046
VAL
−0.012
0.099
−0.049
0.072
0.110
−0.239*
0.049
YR
FRML
0.096
0.509*
0.115
0.498*
0.185
0.151
−0.246*
ACTL
0.143
0.581*
−0.112
0.714*
0.402*
−0.102
−0.247*
PPNL
0.084
0.337*
−0.099
0.497*
0.275*
−0.079
−0.251*
MEK
0.162
0.169
−0.221
0.086
0.100
0.004
−0.097
BTL
−0.105
0.227*
0.144
0.100
−0.038
0.101
0.220
iVAL
0.033
0.062
−0.157
0.090
0.084
0.055
−0.173
VAL
0.035
0.297*
0.107
0.209
0.049
0.251*
−0.172
GI
FRML
0.033
0.118
0.279*
0.126
−0.049
0.362*
−0.127
ACTL
0.261*
0.410*
0.058
0.525*
0.332*
0.249*
−0.303*
PPNL
0.139
0.091
0.194
0.169
0.026
0.528**
0.000
MEK
−0.247*
−0.062
−0.195
−0.195
−0.073
0.132
−0.030
BTL
0.039
0.051
0.155
0.176
−0.049
0.116
−0.041
iVAL
−0.063
0.119
−0.028
0.038
−0.004
0.066
−0.087
VAL
−0.163
0.039
−0.015
−0.128
−0.150
0.312*
0.021
GR
FRML
−0.004
0.161
0.180
0.100
0.027
0.248*
−0.197
ACTL
0.258*
0.505*
0.044
0.478*
0.360*
0.114
−0.392*
PPNL
0.004
0.072
0.141
0.069
0.007
0.200
−0.174
MEK
0.042
0.067
−0.218
0.072
0.084
0.056
−0.079
BTL
−0.081
−0.021
−0.048
−0.096
−0.072
−0.024
−0.064
iVAL
0.052
0.205
0.089
0.095
−0.004
0.129
−0.072
VAL
0.075
0.035
0.110
−0.037
0.057
0.329*
−0.072
SC
FRML
0.347*
0.414*
0.015
0.460*
0.377*
0.138
−0.378*
ACTL
0.295*
0.327*
−0.109
0.466*
0.348*
−0.057
−0.405*
PPNL
0.292*
0.223*
−0.133
0.263*
0.155
−0.127
−0.244*
MEK
0.267*
0.465*
−0.063
0.488*
0.590*
−0.231*
−0.277*
BTL
−0.135
−0.061
0.075
−0.138
−0.155
0.116
0.097
iVAL
0.058
0.025
−0.283*
0.252*
0.300*
−0.175
−0.237*
VAL
−0.162
−0.120
0.189
−0.196
−0.198
0.396*
0.026
Correlation coefficients are significant at a level of 0.05. FRML: formaldehyde; ACTL: acetaldehyde; PPNL: propionaldehyde; MEK: methyl ethyl ketone; BTL: butyraldehyde. iVAL: i-valeraldehyde; VAL: n-valeraldehyde.