#HEADER# PROJECT=NEAQS2004 PLATFORM=RONALD_H_BROWN FILE_START_TIME=2004 07 06 05 17 FILE_STOP_TIME=2004 08 12 04 50 DATA_TYPE=TIMESERIES-1D VERSION=0 SUBMIT_DATE=06-FEB-2006 SOURCE=Quinn, Patricia/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, Gravimetrically-determined Mass - collected with 2 stage impactors Time Description= irregular time interval Other= Version 0= Initial version, no comments Two-stage multi-jet cascade impactors (Berner et al., 1979) sampling air at 55 +/- 5% RH were used to determine sub- and supermicron aerosol mass concentrations. 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. Submicron refers to particles with Daero < 1.1 um at 55% RH and supermicron refers to particles with 1.1 um < Daero < 10 um at 55% 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. Films and filters were weighed at PMEL with a Cahn Model 29 and Mettler UMT2 microbalance, respectively. The balances are housed in a glove box kept at a humidity of 33 +/- 2%. The resulting mass concentrations from the gravimetric analysis include the water mass that is associated with the aerosol at 33% RH. The glove box was continually purged with room air that had passed through a scrubber of activated charcoal, potassium carbonate, and citric acid to remove gas phase organics, acids, and ammonia. Static charging, which can result in balance instabilities, was minimized by coating the walls of the glove box with a static dissipative polymer (Tech Spray, Inc.), placing an anti-static mat on the glove box floor, using anti-static gloves while handling the substrates, and exposing the substrates to a 210Po source to dissipate any charge that had built up on the substrates. Before and after sample collection, substrates were stored double-bagged with the outer bag containing citric acid to prevent absorption of gas phase ammonia. More details of the weighing procedure can be found in Quinn and Coffman [1998]. Concentrations are reported as ug/m3 at STP (25C and 1 atm). 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 #PARAMETER# Duration minutes * 0 59 -999 628 #PARAMETER# DayOfYear DecimalDay * 1 365.9999 -999 627 #PARAMETER# LAT Deg GPS -90 90 -999 500 #PARAMETER# LONGT Deg GPS -180 360 -999 502 #PARAMETER# subMass ug/m3 2-stage impactor -- gravimetric analysis 0 250 -999 1965 #PARAMETER# supMass ug/m3 2-stage impactor -- gravimetric analysis 0 250 -999 1966 #DATA 2 HEADINGS# Y M D HR Min Dur DayOfYear LAT LONGT subMass supMass Y M D HR Min Min DecimalDay Deg Deg ug/m3 ug/m3 2004 7 6 5 17 514 188.2205 42.4186 -70.6511 11.855 1.413 2004 7 6 16 35 313 188.6913 42.4470 -70.7222 15.744 3.345 2004 7 6 22 27 245 188.9355 42.3853 -70.5016 12.286 1.995 2004 7 7 5 49 627 189.2425 42.5169 -70.5532 8.284 4.410 2004 7 7 14 39 267 189.6108 42.5726 -70.4954 9.071 3.374 2004 7 7 22 59 241 189.9578 43.0029 -70.5783 10.013 2.350 2004 7 8 6 34 532 190.2738 43.1628 -69.6249 6.508 1.543 2004 7 8 16 55 550 190.7051 43.5861 -66.9809 7.583 0.368 2004 7 9 5 0 720 191.2085 43.7206 -66.1633 5.250 0.771 2004 7 9 14 4 260 191.5866 43.4289 -66.5724 7.718 0.926 2004 7 9 19 35 267 191.8167 42.9224 -66.9588 17.690 1.426 2004 7 10 5 21 681 192.2232 41.8259 -69.1806 8.856 7.049 2004 7 10 14 30 251 192.6046 42.6018 -70.1408 10.780 4.403 2004 7 10 19 40 253 192.8195 42.2055 -70.4792 10.320 3.149 2004 7 11 4 55 731 193.2050 42.4619 -70.6058 16.331 5.837 2004 7 11 17 25 274 193.7261 42.3590 -71.0348 8.316 14.585 2004 7 12 5 0 719 194.2088 42.7351 -70.6440 9.311 3.078 2004 7 12 14 10 267 194.5908 42.7130 -70.5113 20.726 4.377 2004 7 12 19 35 258 194.8162 42.7862 -70.6882 14.731 4.656 2004 7 13 5 2 727 195.2102 42.8878 -70.6066 6.440 7.817 2004 7 13 14 25 245 195.6009 42.9044 -70.6041 7.603 10.918 2004 7 14 3 40 890 196.1530 42.3998 -70.9003 12.664 26.666 2004 7 14 15 3 363 196.6271 42.3826 -70.8595 8.821 14.486 2004 7 15 16 49 593 197.7009 42.8865 -70.6078 7.157 4.214 2004 7 16 5 32 665 198.2310 42.7373 -70.6998 20.141 12.930 2004 7 16 14 44 268 198.6144 42.6902 -70.4953 17.722 11.294 2004 7 16 21 26 207 198.8933 43.1835 -70.3204 16.707 13.914 2004 7 17 5 43 644 199.2383 42.7438 -68.8487 22.828 27.414 2004 7 17 14 28 200 199.6035 43.1236 -69.5812 15.058 8.875 2004 7 17 19 22 245 199.8073 43.1644 -68.1935 29.147 13.537 2004 7 18 4 45 752 200.1980 43.5753 -68.0258 24.792 3.625 2004 7 18 14 4 258 200.5864 44.1511 -67.3924 21.361 0.261 2004 7 18 19 24 271 200.8087 44.1859 -67.0001 24.651 0.184 2004 7 19 5 3 725 201.2111 43.8211 -67.7307 9.526 2.021 2004 7 19 23 32 1381 201.9808 43.6184 -67.0631 3.192 0.081 2004 7 20 14 29 303 202.6038 43.4136 -69.3356 5.557 0.165 2004 7 20 20 20 265 202.8477 43.2475 -70.0312 23.036 1.974 2004 7 21 5 14 698 203.2186 42.9247 -70.5900 33.003 7.039 2004 7 21 14 2 264 203.5853 42.4992 -70.7052 30.026 6.323 2004 7 21 19 27 279 203.8110 42.4575 -70.7352 17.531 -0.275 2004 7 22 4 53 751 204.2039 42.5443 -70.4046 31.587 4.233 2004 7 22 14 9 261 204.5900 42.9498 -69.2935 16.663 -0.392 2004 7 22 19 30 265 204.8125 42.8627 -69.9786 26.149 9.357 2004 7 23 5 29 805 205.2291 42.7342 -70.3067 46.708 8.827 2004 7 27 6 0 613 209.2500 42.7577 -70.7058 7.752 1.619 2004 7 27 14 0 236 209.5836 42.7979 -70.6367 8.206 1.243 2004 7 27 19 31 283 209.8136 42.3952 -70.0316 8.656 1.707 2004 7 28 5 7 715 210.2138 42.9393 -70.5824 5.906 7.283 2004 7 28 16 55 602 210.7050 42.9722 -70.5081 11.791 2.854 2004 7 29 5 5 727 211.2123 42.8167 -70.7092 7.739 3.878 2004 7 29 14 4 256 211.5867 42.6665 -69.7498 6.873 1.245 2004 7 29 14 10 -372 211.5908 42.6666 -69.7498 16.422 4.899 2004 7 30 5 33 666 212.2314 42.7983 -70.6516 28.939 6.532 2004 7 30 13 55 245 212.5801 42.7991 -70.7444 21.409 6.754 2004 7 30 19 23 311 212.8082 43.2893 -69.8663 31.714 5.886 2004 7 31 4 58 744 213.2072 43.6367 -69.5945 14.072 11.376 2004 7 31 14 1 246 213.5845 43.4200 -70.3076 7.927 17.880 2004 7 31 19 37 279 213.8180 43.3332 -69.8949 6.239 27.892 2004 8 1 5 0 741 214.2087 42.9819 -70.6263 4.899 26.201 2004 8 1 13 57 246 214.5815 42.8021 -70.3324 8.061 23.751 2004 8 1 19 23 288 214.8083 43.3640 -70.2289 12.351 22.752 2004 8 2 4 51 752 215.2024 43.5647 -68.9296 4.881 11.986 2004 8 2 14 1 249 215.5841 43.2730 -69.8104 14.942 3.079 2004 8 2 19 28 307 215.8116 43.6442 -69.2616 14.859 1.300 2004 8 3 5 4 729 216.2112 43.6442 -69.4054 14.267 2.709 2004 8 3 20 1 218 216.8345 43.6442 -69.7594 41.499 7.345 2004 8 4 5 43 644 217.2386 43.7502 -68.7928 10.748 20.471 2004 8 4 13 52 248 217.5781 44.3542 -67.5757 8.231 0.747 2004 8 4 19 18 276 217.8045 44.1796 -68.0460 12.885 1.762 2004 8 5 5 17 696 218.2206 44.2025 -68.3873 8.890 1.422 2004 8 5 14 1 252 218.5841 43.8602 -68.6951 6.443 5.414 2004 8 5 19 9 275 218.7985 43.6325 -69.4827 10.229 2.489 2004 8 6 4 51 750 219.2024 43.6557 -70.2168 4.309 2.031 2004 8 6 13 44 466 219.7348 43.6605 -69.3610 5.621 1.614 2004 8 7 4 41 763 220.1954 43.2668 -68.4038 7.334 2.732 2004 8 7 16 30 579 220.6881 42.5509 -68.3839 6.227 2.502 2004 8 8 7 34 569 221.3158 42.3588 -69.8554 5.895 8.014 2004 8 8 15 50 279 221.6599 42.4330 -70.6971 4.005 3.683 2004 8 9 5 42 1017 222.2377 42.3690 -71.0510 8.360 1.776 2004 8 9 19 49 435 222.8261 42.3553 -70.4097 6.120 2.549 2004 8 10 5 38 650 223.2354 42.7588 -70.2753 10.445 4.169 2004 8 10 13 57 266 223.5818 42.5562 -69.3883 25.758 5.420 2004 8 10 19 53 356 223.8291 42.4538 -69.0630 36.919 12.962 2004 8 11 5 23 689 224.2246 42.9352 -70.7437 29.310 14.902 2004 8 11 14 2 246 224.5851 42.9362 -70.3656 29.790 20.510 2004 8 11 19 26 313 224.8099 42.7417 -70.6446 34.528 16.245 2004 8 12 4 50 721 225.2018 42.7930 -70.7782 24.698 8.844