Current Date: 5/1/2026 4:09 PM
Daily Parameter Report
5/1/2026
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Summary
Parameter SiteName Avg Max Hr. of
01 OZONE PPM ALPINE .031 .036 C C .030 .028 .026 .029 .033 .038 .046 .055 .061 .064 .071 .068 .044 .071 14
CHULA VISTA .026 .026 C C .034 .041 .045 .043 .042 .048 .053 .054 .053 .052 .050 .047 .043 .054 11
DOWNTOWN SE .031 .030 C C .034 .038 .043 .042 .041 .042 .049 .050 .051 .052 .047 .048 .042 .052 13
EL CAJON LES .026 .025 C C C .038 .038 .038 .037 .041 .048 .058 .062 .061 .062 .052 .045 .062 12
KEARNY MESA .023 C C .021 .019 .031 .041 .042 .043 .045 .049 .056 .059 .057 .052 .051 .042 .059 12
OTAY MESA DVN .030 .030 C C .036 .035 .031 .031 .036 .044 .052 .060 .062 .058 .054 .051 .043 .062 12
PENDLETON .026 .028 C C .030 .029 .027 .037 .045 .047 .050 .052 .051 .051 .050 .050 .040 .052 11
03 NO2 PPB ALPINE 5.0 3.7 C C 2.9 3.0 3.9 4.3 4.0 4.4 3.5 3.5 3.4 3.4 4.2 4.1 3.8 5.0 00
CARMEL MT RCH 8.9 4.8 C C 2.6 2.7 3.0 14.6 8.3 7.7 8.4 9.5 10.3 9.4 11.0 9.2 7.8 14.6 07
CHULA VISTA 9.2 8.6 C C 5.6 4.4 3.1 4.4 5.1 3.8 3.1 2.8 1.9 1.9 1.8 1.8 4.1 9.2 00
DOWNTOWN SE 7.9 8.1 C C 5.8 6.0 4.0 5.5 7.2 8.4 5.6 4.2 3.9 3.6 5.2 3.2 5.6 8.4 09
EL CAJON LES 3.5 2.9 C C C 1.5 1.7 1.7 2.6 2.5 3.4 2.2 2.5 3.2 2.7 3.7 2.6 3.7 15
KEARNY MESA 7.6 C C 10.3 12.5 7.6 2.8 2.6 2.8 3.7 5.1 3.4 2.9 2.4 2.6 1.8 4.8 12.5 04
OTAY MESA DVN 5.2 5.1 C C 5.6 6.0 6.9 8.7 7.6 6.0 5.6 2.7 2.8 2.2 1.7 1.4 4.8 8.7 07
PENDLETON 5.3 4.0 C C 4.3 5.3 5.0 5.3 3.5 2.7 2.6 1.4 1.2 1.1 1.0 .9 3.1 5.3 00
SAN YSIDRO 12.4 11.2 C C 11.5 7.4 10.7 11.0 12.0 5.4 3.0 3.2 3.2 3.7 3.1 3.4 7.2 12.4 00
06 CO PPM CARMEL MT RCH .3 .2 C C .2 .2 .2 .4 .3 .3 .3 .3 .5 .5 .5 .6 .3 .6 15
SAN YSIDRO .3 .3 C C .3 .2 .3 .3 .4 .3 .2 .2 .2 .2 .2 .2 .3 .4 08
07 H2S PPB IB CIVIC CTR 4.3 2.9 1.5 1.0 1.1 2.3 2.3 1.2 .8 .8 .6 .5 .5 .5 .5 .5 1.3 4.3 00
NESTOR - BES 4.5 4.2 16.4 7.0 2.6 3.8 2.1 2.1 2.1 .8 .7 .5 .6 .5 .6 .8 3.0 16.4 02
SAN YSIDRO 1.0 .9 .7 .7 .9 .6 1.3 1.2 1.3 1.7 1.7 1.4 1.2 .7 .7 .7 1.0 1.7 09
10 INTMP °C ALPINE 26 26 26 26 26 26 26 26 26 25 25 25 25 25 25 25 26 26 00
CARMEL MT RCH 25 25 24 25 25 24 24 24 24 24 25 24 24 24 24 24 24 25 00
CHULA VISTA 25 25 25 25 25 25 24 25 24 24 24 24 24 24 24 24 24 25 00
DOWNTOWN SE 24 25 25 25 25 25 25 25 25 25 24 24 24 24 24 24 25 25 01
EL CAJON LES 26 26 26 26 26 26 26 26 26 26 26 26 26 26 25 25 26 26 00
KEARNY MESA 23 24 24 24 23 24 25 24 24 25 24 24 25 24 24 25 24 25 06
OTAY MESA DVN 26 26 27 27 27 26 26 26 27 27 26 26 26 26 26 26 26 27 02
PENDLETON 26 26 26 26 26 26 26 26 26 26 25 25 25 25 25 25 26 26 00
SAN YSIDRO 24 24 24 24 24 24 24 24 25 24 24 24 24 24 24 24 24 25 08
10 INTMP °C        IB CIVIC CTR 27 27 27 27 27 27 26 26 25 24 24 24 24 24 24 25 26 27 00
NESTOR - BES 27 27 26 26 26 26 26 26 25 25 25 25 24 24 25 25 26 27 00
11 PM2.5 µg/M3 ALPINE 13.3 14.4 10.1 9.1 5.7 5.7 6.5 9.8 10.7 10.7 12.8 14.0 13.1 13.1 14.8 14.5 11.1 14.8 14
CARMEL MT RCH 11.5 12.3 14.2 14.7 14.3 14.5 14.5 15.7 15.9 17.0 17.0 16.6 16.7 16.6 16.0 15.9 15.2 17.0 09
CHULA VISTA 12.0 12.1 12.1 12.3 12.7 12.1 12.9 14.2 16.8 17.7 16.6 15.9 14.0 13.5 13.7 13.5 13.8 17.7 09
DOWNTOWN SE 14.9 15.1 15.6 15.3 15.4 15.6 15.6 16.0 16.7 16.7 15.9 15.4 14.4 14.6 14.1 13.3 15.2 16.7 08
EL CAJON LES 11.6 11.7 11.8 12.3 12.2 13.8 14.5 15.3 16.2 17.0 18.1 18.8 16.6 15.8 15.3 14.1 14.6 18.8 11
KEARNY MESA 12.9 13.6 12.8 13.6 12.9 13.9 14.0 14.8 15.2 18.3 20.6 20.2 17.7 16.2 14.9 15.2 15.4 20.6 10
Current Date: 5/1/2026 4:09 PM
Daily Parameter Report
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Summary
Parameter SiteName Avg Max Hr. of
OTAY MESA DVN 22.2 19.4 19.9 19.6 21.3 24.2 29.1 32.0 32.4 29.0 25.4 17.7 16.8 15.5 14.1 13.3 21.9 32.4 08
PENDLETON 11.1 10.7 11.3 11.1 11.0 11.2 11.3 11.9 12.0 11.8 12.9 11.8 11.5 11.5 10.2 10.3 11.3 12.9 10
SAN YSIDRO 16.5 19.0 18.5 16.0 18.2 15.7 23.1 22.7 26.2 21.0 16.3 16.8 16.2 15.8 15.1 14.1 18.2 26.2 08
12 VWDR ° ALPINE 355 349 97 107 145 116 196 230 252 249 232 239 252 287 275 295 0 355 00
CHULA VISTA 107 71 103 103 101 94 108 199 297 287 272 259 250 266 250 251 0 297 08
DOWNTOWN SE 105 85 99 94 82 106 128 84 86 229 226 243 251 244 258 242 0 258 14
EL CAJON LES 211 100 111 143 165 112 134 108 274 211 332 9 218 235 248 207 0 332 10
KEARNY MESA 63 64 93 71 102 93 113 124 157 193 233 249 258 275 268 275 0 275 13
OTAY MESA DVN 34 26 51 120 139 81 106 91 247 314 298 M 286 288 279 273 0 314 09
PENDLETON 39 45 50 33 70 61 41 59 186 226 244 245 249 257 257 262 0 262 15
13 SIGTHETA ° ALPINE 29 36 55 23 39 35 61 44 42 34 32 38 40 29 29 28 37 61 06
CHULA VISTA 20 30 27 15 34 17 34 57 64 49 39 25 23 23 21 24 31 64 08
DOWNTOWN SE 28 16 18 14 16 23 40 37 64 45 25 26 26 28 29 25 29 64 08
EL CAJON LES 45 11 35 41 24 35 28 44 44 61 79 42 54 22 29 19 38 79 10
KEARNY MESA 7 4 13 9 13 12 27 62 41 51 54 36 24 20 19 21 26 62 07
OTAY MESA DVN 12 11 10 13 22 16 25 48 48 45 40 M 16 15 19 17 24 48 07
PENDLETON 13 11 11 11 20 10 15 39 15 20 10 8 8 13 11 14 14 39 07
14 VWSP MPH ALPINE 1.7 1.3 .5 1.6 1.5 2.1 .7 1.6 2.7 3.5 4.2 3.8 3.9 5.4 5.5 5.3 .0 5.5 14
CHULA VISTA 1.3 1.0 1.8 3.0 1.9 3.4 2.1 1.7 1.1 3.1 4.8 6.8 7.6 7.4 7.4 6.1 .0 7.6 12
DOWNTOWN SE 1.6 2.4 2.4 2.9 3.0 3.3 1.1 2.1 1.0 3.7 7.1 7.0 7.1 6.4 6.3 6.0 .0 7.1 10
EL CAJON LES .9 2.1 1.6 .5 1.6 1.9 1.9 1.6 1.0 1.7 1.4 2.6 4.2 7.7 6.0 8.6 .0 8.6 15
KEARNY MESA 2.8 3.6 2.9 2.7 2.4 3.8 2.7 1.0 2.8 2.8 3.3 5.9 8.8 9.7 8.0 7.1 .0 9.7 13
OTAY MESA DVN 2.1 2.6 1.6 2.0 2.3 3.4 3.3 2.6 1.7 3.9 5.4 M 9.4 9.7 9.1 8.5 .0 9.7 13
PENDLETON 3.7 4.7 4.0 3.6 2.8 5.3 4.2 2.7 4.4 4.3 7.3 8.4 9.3 8.2 8.4 6.6 .0 9.3 12
15 SWSP MPH ALPINE 1.9 1.9 1.0 1.7 1.8 2.2 1.8 2.4 3.4 4.2 4.7 4.9 4.9 6.1 6.2 5.9 3.4 6.2 14
CHULA VISTA 1.3 1.3 2.0 3.1 2.1 3.6 2.6 2.5 2.5 4.3 5.6 7.5 8.2 8.0 7.8 6.6 4.3 8.2 12
DOWNTOWN SE 1.8 2.5 2.5 3.0 3.1 3.5 2.6 2.6 2.5 4.5 7.8 7.8 8.1 7.1 7.3 6.5 4.6 8.1 12
EL CAJON LES 1.4 2.2 1.9 1.7 1.8 2.7 2.9 2.4 2.7 3.4 3.3 3.7 5.8 8.5 6.9 9.2 3.8 9.2 15
KEARNY MESA 2.8 3.6 3.0 2.8 2.4 4.0 3.4 2.8 3.5 4.0 5.0 7.8 9.9 10.4 8.5 7.6 5.1 10.4 13
OTAY MESA DVN 2.1 2.6 1.8 2.4 3.0 3.6 3.7 3.2 3.3 5.2 6.3 M 9.8 10.0 9.7 8.9 5.0 10.0 13
PENDLETON 3.9 4.8 4.2 3.7 3.0 5.4 4.3 3.5 4.6 4.6 7.4 8.4 9.4 8.3 8.5 6.8 5.7 9.4 12
16 AMBTEMP °F ALPINE 51.4 51.1 50.2 49.9 49.3 49.6 49.8 52.0 57.5 62.2 65.9 69.0 72.9 74.9 74.6 72.3 59.5 74.9 13
CARMEL MT RCH 56.8 57.7 58.1 57.9 57.9 57.9 58.3 59.3 60.7 64.2 67.8 72.9 74.4 72.6 72.8 71.8 63.8 74.4 12
CHULA VISTA 58.3 58.7 59.1 59.3 60.2 60.6 60.6 61.5 62.8 65.8 67.2 67.6 67.6 66.8 67.0 66.1 63.1 67.6 11
DOWNTOWN SE 59.9 59.5 59.4 59.7 60.0 60.1 60.4 61.2 63.4 66.0 67.7 69.1 68.9 69.4 68.6 67.9 63.8 69.4 13
EL CAJON LES 56.5 55.6 55.8 57.4 57.7 58.5 58.8 59.3 61.5 65.2 70.0 73.6 77.0 76.1 76.2 73.7 64.6 77.0 12
KEARNY MESA 55.8 56.0 56.3 56.2 58.0 59.3 59.6 60.4 62.3 65.4 69.5 71.3 71.0 70.4 70.1 69.6 63.2 71.3 11
OTAY MESA DVN 56.7 56.2 56.3 57.5 57.6 57.7 58.0 58.9 62.5 66.0 69.5 71.1 71.2 70.1 70.1 68.9 63.0 71.2 12
PENDLETON 60.7 60.0 60.5 60.5 61.3 61.8 61.7 62.9 63.3 64.8 65.6 65.8 66.5 67.4 67.0 66.8 63.5 67.4 13
Current Date: 5/1/2026 4:09 PM
Daily Parameter Report
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Summary
Parameter SiteName Avg Max Hr. of
SAN YSIDRO 58.1 57.7 58.9 60.0 60.7 61.2 61.6 62.7 64.2 67.1 68.8 70.1 69.6 69.2 68.2 67.5 64.1 70.1 11
17 RELHUM % ALPINE 96 99 100 100 100 100 100 100 82 71 63 56 48 44 48 53 79 100 02
EL CAJON LES 88 90 88 86 85 84 83 82 77 69 58 51 46 49 49 55 71 90 01
KEARNY MESA 90 91 91 91 87 84 82 80 75 69 61 59 60 62 65 66 76 91 01
18 PRES mmHg EL CAJON LES 748 747 748 748 748 748 748 749 749 748 748 747 747 747 746 746 748 749 07
KEARNY MESA 749 748 748 748 749 749 749 749 750 749 749 748 748 748 748 747 749 750 08
19 SOLAR W/M2 EL CAJON LES -1 0 2 3 3 16 56 129 332 833 955 1004 993 914 770 577 412 1004 11
KEARNY MESA 2 2 1 2 2 17 57 140 372 745 966 1016 998 915 779 594 413 1016 11
20 UVRAD W/M2 EL CAJON LES 0 0 0 0 0 1 4 9 20 46 53 55 54 50 41 29 23 55 11
25 NOY EL CAJON LES 3.79 3.31 2.82 2.85 3.09 C C 2.88 4.30 4.77 6.24 5.51 5.68 6.02 5.21 5.43 4.42 6.24 10
26 NOY-NO EL CAJON LES 3.73 3.29 2.68 2.78 3.01 C C 2.68 3.62 3.90 5.14 4.99 5.13 5.09 4.59 4.42 3.93 5.14 10
27 NO Trace EL CAJON LES .05 .01 .13 .06 .07 C C .19 .67 .86 1.09 .52 .55 .93 .62 1.00 .48 1.09 10
28 SO2 Tr PPB EL CAJON LES .0 .0 C C C .0 .0 .0 .0 .0 .0 .0 .1 .1 .1 .1 .0 .1 12
29 CO Tr PPB EL CAJON LES 184.5 185.9 C C C 168.0 176.7 208.0 198.2 213.0 248.8 250.2 259.0 240.8 247.3 207.7 214.4 259.0 12
BCarbon ug/m3 10TH AVE MARIN .19 .38 .59 .47 .46 .38 .38 < < .41 < .27 < < .35 < .39 .59 02
ALPINE .17 .20 .18 .17 < .14 .18 .22 < < < < < < < .27 .19 .27 15
BOSTON AVE .47 .45 .40 .46 .42 .37 .41 .37 .39 .38 .40 .29 .28 .36 .20 .17 .36 .47 00
CHICANO PARK < .40 .35 .32 .43 .37 .35 < .33 .32 .27 < .32 .29 .24 .27 .33 .43 04
DOWNTOWN SE .35 .37 .32 .27 .29 .30 .25 .30 < .44 < .32 .26 < .24 < .31 .44 09
OCEANVIEW BLV < < < .26 < < .28 .24 .26 .34 .33 .24 .26 .29 .21 .21 .27 .34 09
OTAY MESA DVN .58 .59 < .79 < 1.11 < 1.99 1.85 1.51 .91 .36 .30 .22 < .14 .86 1.99 07
SAN YSIDRO .75 < 1.11 .73 .89 .46 1.05 .85 1.01 .53 .21 < .21 < < < .71 1.11 02
PM10 STD ALPINE 28.6 27.8 17.1 14.5 7.9 8.3 10.1 19.1 23.5 24.6 31.2 32.4 32.2 31.6 36.8 35.1 23.8 36.8 14
CARMEL MT RCH 23.8 26.5 29.8 29.1 28.2 29.7 28.6 32.3 31.8 33.8 36.3 35.0 46.2 44.1 35.3 36.6 32.9 46.2 12
CHULA VISTA 26.4 25.9 27.4 28.9 29.7 28.4 27.7 30.1 33.6 38.5 37.9 35.0 32.9 29.5 30.3 29.7 30.7 38.5 09
DOWNTOWN SE 32.1 31.9 34.0 33.3 33.3 34.6 38.2 35.1 36.4 39.8 38.0 36.2 32.3 35.7 34.7 29.7 34.7 39.8 09
EL CAJON LES 24.3 23.3 25.2 25.7 26.6 30.2 31.6 33.6 36.3 37.2 40.1 43.1 38.5 41.3 36.7 32.7 32.9 43.1 11
KEARNY MESA 26.7 29.5 27.0 29.1 29.4 31.0 31.6 33.1 33.8 40.0 48.3 44.5 37.8 35.8 34.2 38.3 34.3 48.3 10
OTAY MESA DVN 94.2 61.9 49.1 48.0 46.1 49.5 60.9 67.0 68.7 68.4 65.7 45.6 42.1 40.7 35.8 32.7 54.7 94.2 00
PENDLETON 23.8 23.7 22.8 22.8 24.2 23.9 25.5 27.8 31.8 27.7 29.0 25.7 26.6 26.5 24.1 25.1 25.6 31.8 08
SAN YSIDRO 34.9 39.9 39.3 35.6 39.8 36.3 45.2 45.2 54.2 46.3 39.6 40.0 37.8 37.9 35.8 33.3 40.0 54.2 08
RAINFALL EL CAJON LES .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 00