#HEADER# PROJECT=CALNEX PLATFORM=ATLANTIS FILE_START_TIME=2010 05 15 03 12 FILE_STOP_TIME=2010 06 06 19 31 DATA_TYPE=TIMESERIES-1D VERSION=0 SUBMIT_DATE=20-OCT-2010 SOURCE=Quinn, Patricia K/NOAA-PMEL/Phone: 206-526-6892 /Address: 7600 Sand Pt. Wy. NE,Seattle,WA 98115 /email: patricia.k.quinn@noaa.gov #REMARKS# Data Source Description= Aerosol Chemistry Data, Cations - collected with 2 stage impactors during CalNex 2010 Time Description= irregular time interval Other= Below Detection Level Indicator = 0 Version 0= Initial version, no comments Aerosol Ion Chemistry Data Contact persons: Tim Bates, tim.bates@noaa.gov; Trish Quinn, patricia.k.quinn@noaa.gov Two-stage multi-jet cascade impactors (Berner et al., 1979) sampling air at 60% RH were used to determine the sub- and supermicrometer concentrations of Cl-, Br-, NO3-, SO4=, methanesulfonate (MSA-), oxalate (Ox-), Na+, NH4+, K+, Mg+2, and Ca+2. Sampling periods ranged from 2 to 13 hours. The RH of the sampled air stream was measured a few inches upstream from the impactor. The 50% aerodynamic cutoff diameters, D50,aero, were 1.1 and 10 um. Submicrometer refers to particles with Daero < 1.1 um at 60% RH and supermicrometer refers to particles with 1.1 um < Daero < 10 um at 60% RH. The impaction stage at the inlet of the impactor was coated with silicone grease to prevent the bounce of larger particles onto the downstream stages. Tedlar films were used as the collection substrate in the impaction stage and a Millipore Fluoropore filter (1.0-um pore size) was used for the backup filter. Films were cleaned in an ultrasonic bath in 10% H2O2 for 30 min, rinsed in distilled, deionized water, and dried in an NH3- and SO2-free glove box. Filters and films were wetted with 1 mL of spectral grade methanol. An additional 5 mLs of distilled deionized water were added to the solution and the substrates were extracted by sonicating for 30 min. The extracts were analyzed by ion chromatography [Quinn et al., 2000]. All handling of the substrates was done in the glove box. Blank levels were determined by loading an impactor with substrates but not drawing any air through it. Concentrations are reported as ug/m3 at STP (25C and 1 atm). Values below the detection limit are denoted with a -8888 in the .itc file and 0 in the .acf and .itx files, missing data are denoted with a -9999. Berner et al., Sci. Total Environ., 13, 245 - 261, 1979. Quinn et al., J. Geophys. Res., 105, 6785 - 6805, 2000. #TIME PARAMETERS# year month day hour minute second #PARAMETER# Duration minutes * 0 59 -9999 628 #PARAMETER# DayOfYear DecimalDay * 1 365.9999 -9999 627 #PARAMETER# LAT Deg GPS -90 90 -9999 500 #PARAMETER# LONGT Deg GPS -180 360 -9999 502 #PARAMETER# subNa ug/m3 2-stage impactor -- ion chromatographic analysis 0 50 -9999 1920 #PARAMETER# supNa ug/m3 2-stage impactor -- ion chromatographic analysis 0 50 -9999 1921 #PARAMETER# subNH4 ug/m3 2-stage impactor -- ion chromatographic analysis 0 50 -9999 1923 #PARAMETER# supNH4 ug/m3 2-stage impactor -- ion chromatographic analysis 0 50 -9999 1924 #PARAMETER# subK ug/m3 2-stage impactor -- ion chromatographic analysis 0 50 -9999 1926 #PARAMETER# supK ug/m3 2-stage impactor -- ion chromatographic analysis 0 50 -9999 1927 #PARAMETER# subMg ug/m3 2-stage impactor -- ion chromatographic analysis 0 50 -9999 1929 #PARAMETER# supMg ug/m3 2-stage impactor -- ion chromatographic analysis 0 50 -9999 1930 #PARAMETER# subCa ug/m3 2-stage impactor -- ion chromatographic analysis 0 50 -9999 1932 #PARAMETER# supCa ug/m3 2-stage impactor -- ion chromatographic analysis 0 50 -9999 1933 #DATA 2 HEADINGS# Y M D HR Min Sec Dur DayOfYear LAT LONGT subNa supNa subNH4 supNH4 subK supK subMg supMg subCa supCa Y M D HR Min Sec Min DecimalDay Deg Deg ug/m3 ug/m3 ug/m3 ug/m3 ug/m3 ug/m3 ug/m3 ug/m3 ug/m3 ug/m3 2010 5 15 3 12 0 645.0 135.35729 33.450108 -118.296065 0.141 1.397 1.090 0.241 0.007 0.052 0.012 0.131 0.013 0.070 2010 5 15 15 11 0 323.0 135.74479 33.799368 -118.465542 0.109 2.184 2.106 0.885 0.022 0.047 0.001 0.174 0.002 0.098 2010 5 16 3 19 0 640.0 136.36042 33.726942 -118.732062 0.137 2.239 1.268 0.216 0.005 0.057 0.008 0.174 0.004 0.066 2010 5 16 15 45 0 217.0 136.73160 33.648990 -118.499623 0.078 1.268 0.822 0.253 0.000 0.032 0.005 0.105 0.017 0.060 2010 5 16 20 39 0 273.0 136.95521 33.338203 -118.959630 0.099 1.325 1.179 0.176 0.002 0.025 0.009 0.087 0.007 0.025 2010 5 17 2 24 0 690.0 137.33958 33.989095 -118.852032 0.031 0.460 0.520 0.150 0.000 0.012 0.003 0.031 0.009 0.017 2010 5 17 14 56 0 297.0 137.72535 34.159187 -119.458130 0.218 1.438 0.593 0.040 0.002 0.033 0.004 0.093 0.006 0.026 2010 5 17 20 57 0 413.0 138.01632 34.074423 -119.208433 0.051 0.842 0.778 0.056 0.002 0.026 0.001 0.065 0.000 0.031 2010 5 18 4 58 0 543.0 138.39549 34.111972 -119.189960 0.051 0.589 0.823 0.067 0.000 0.016 0.004 0.038 0.000 0.030 2010 5 18 21 40 0 232.0 138.98333 33.959053 -118.656330 0.021 0.382 0.201 0.009 0.003 0.012 0.002 0.031 0.001 0.030 2010 5 19 2 27 0 694.0 139.34306 33.700418 -118.217650 0.031 0.699 0.316 0.023 0.002 0.022 0.002 0.050 0.006 0.014 2010 5 19 15 2 0 640.0 139.84861 33.709888 -118.217772 0.017 0.214 0.867 0.058 0.000 0.007 0.001 0.015 0.005 0.007 2010 5 20 2 57 0 660.0 140.35208 33.709745 -118.217473 0.084 1.618 0.620 0.162 0.003 0.052 0.005 0.136 0.007 0.030 2010 5 20 15 40 0 215.0 140.72743 33.760612 -118.219222 0.164 2.748 0.820 0.313 0.000 0.067 0.000 0.207 0.055 0.087 2010 5 20 20 33 0 271.0 140.95035 33.581460 -117.886783 0.277 3.707 0.572 0.201 0.010 0.259 0.025 0.273 0.021 0.083 2010 5 21 2 6 0 711.0 141.33437 33.722092 -118.885863 0.636 7.857 0.416 0.407 0.022 0.264 0.053 0.770 0.032 0.206 2010 5 21 15 40 0 256.0 141.74167 34.017892 -118.583425 0.376 5.405 0.712 0.789 0.008 0.190 0.033 0.440 0.034 0.103 2010 5 21 20 57 0 263.0 141.96424 33.650012 -118.566800 0.369 6.135 0.301 0.302 0.010 0.174 0.029 0.521 0.017 0.230 2010 5 22 19 3 0 172.0 142.85347 33.748043 -118.276010 0.173 2.815 0.145 0.198 0.000 0.000 0.042 0.232 0.000 0.277 2010 5 23 20 26 0 290.0 143.95208 33.568442 -118.183468 0.542 3.908 0.123 0.082 0.000 0.100 0.039 0.380 0.029 0.093 2010 5 24 2 15 0 704.0 144.33819 33.932655 -118.461647 0.245 5.337 0.123 0.161 0.007 0.138 0.021 0.431 0.018 0.122 2010 5 24 14 49 0 131.0 144.66285 33.946078 -118.465070 0.189 3.045 0.298 0.367 0.000 0.040 0.000 0.237 0.000 0.095 2010 5 24 21 49 0 966.0 145.24444 33.881940 -118.538220 0.105 2.962 0.153 0.059 0.000 0.075 0.011 0.254 0.007 0.078 2010 5 26 2 3 0 712.0 146.33264 33.550065 -118.212652 0.043 0.498 0.324 0.015 0.000 0.000 0.006 0.039 0.000 0.025 2010 5 26 17 2 0 173.0 146.76979 33.764228 -118.274783 0.032 0.275 0.481 0.064 0.000 0.000 0.000 0.033 0.048 0.028 2010 5 26 21 7 0 232.0 146.96042 33.764232 -118.274752 0.020 0.151 0.374 0.075 0.000 0.000 0.000 0.004 0.000 0.110 2010 5 27 2 0 0 721.0 147.33368 33.764283 -118.275403 0.026 0.270 0.397 0.046 0.000 0.007 0.000 0.023 0.058 0.051 2010 5 28 2 18 0 652.0 148.32222 33.686640 -118.086640 0.034 0.777 0.185 0.053 0.000 0.035 0.000 0.072 0.000 0.035 2010 5 29 0 0 0 844.0 149.29306 33.785722 -118.453710 0.111 3.565 0.135 0.172 0.010 0.098 0.006 0.325 0.006 0.102 2010 5 29 15 6 0 239.0 149.71215 33.994044 -118.627366 0.111 2.506 0.196 0.620 0.000 0.035 0.042 0.239 0.000 0.115 2010 5 29 20 8 0 298.0 149.94236 33.996332 -118.520485 0.070 1.568 0.335 0.317 0.038 0.031 0.012 0.130 0.061 0.093 2010 5 30 1 55 0 665.0 150.31076 33.500213 -118.619480 0.125 1.910 0.249 0.161 0.000 0.028 0.003 0.178 0.000 0.050 2010 5 30 14 49 0 250.0 150.70417 33.726690 -118.760187 0.145 1.718 0.608 0.305 0.000 0.035 0.015 0.187 0.023 0.046 2010 5 31 5 50 0 484.0 151.41111 34.252203 -119.358233 0.225 4.066 0.399 0.057 0.041 0.230 0.020 0.348 0.000 0.150 2010 5 31 14 43 0 261.0 151.70382 34.279573 -119.372307 0.173 2.023 0.819 0.347 0.000 0.039 0.005 0.138 0.000 0.072 2010 5 31 20 8 0 174.0 151.89931 34.379123 -119.845908 0.180 2.360 0.923 0.379 0.045 0.037 0.026 0.176 0.156 0.098 2010 6 1 3 20 0 639.0 152.36076 34.728765 -121.070845 0.062 0.669 0.119 0.016 0.000 0.024 0.007 0.059 0.015 0.029 2010 6 1 19 54 0 303.0 152.93437 36.643548 -122.012337 0.123 2.489 0.156 0.035 0.088 0.093 0.000 0.225 0.040 0.114 2010 6 2 2 0 0 712.0 153.33056 36.892881 -122.004646 0.156 2.334 0.229 0.073 0.000 0.046 0.007 0.206 0.006 0.029 2010 6 2 15 0 0 452.0 153.78194 37.002661 -122.318239 0.036 0.081 0.040 0.005 0.000 0.016 0.000 0.009 0.000 0.005 2010 6 3 3 15 0 641.0 154.35799 38.034002 -122.154617 0.012 0.032 0.077 0.005 0.000 0.007 0.000 0.000 0.004 0.000 2010 6 3 15 0 0 422.0 154.77153 38.182057 -121.664592 0.051 0.071 0.011 0.014 0.024 0.000 0.000 0.000 0.102 0.000 2010 6 3 22 57 0 892.0 155.26597 38.562403 -121.551458 0.008 0.013 0.193 0.024 0.021 0.000 0.004 0.002 0.015 0.022 2010 6 4 14 56 0 302.0 155.72708 38.562433 -121.551335 0.008 0.034 0.366 0.025 0.000 0.000 0.000 0.000 0.000 0.000 2010 6 4 22 41 0 319.0 156.05590 38.220518 -121.672582 0.016 0.061 0.176 0.010 0.000 0.020 0.000 0.009 0.028 0.017 2010 6 5 4 53 0 644.0 156.42708 38.562688 -121.551575 0.006 0.016 0.085 0.000 0.031 0.000 0.004 0.000 0.000 0.009 2010 6 5 16 24 0 506.0 156.85903 38.406097 -121.614838 0.007 0.029 0.110 0.007 0.000 0.000 0.000 0.006 0.020 0.029 2010 6 6 1 52 0 725.0 157.32951 38.051017 -122.116720 0.007 0.085 0.164 0.006 0.000 0.000 0.000 0.004 0.000 0.006 2010 6 6 15 3 0 268.0 157.72014 37.979953 -122.426313 0.041 0.093 0.153 0.013 0.000 0.000 0.000 0.000 0.048 0.000