#HEADER# PROJECT=NEAQS2002 PLATFORM=RONALD_H_BROWN FILE_START_TIME=2002 07 13 20 42 FILE_STOP_TIME=2002 08 08 22 54 DATA_TYPE=TIMESERIES-1D VERSION=1 SUBMIT_DATE=27-MAY-2003 SOURCE=Trish Quinn, Patricia.K.Quinn@noaa.gov #REMARKS# NOAA PMEL Chemistry Data - collected with 2 stage impactors Contact person: Trish Quinn, Patricia.K.Quinn@noaa.gov Two-stage multi-jet cascade impactors (Berner et al., 1979) sampling air at 55 +/- 5% RH were used to determine the sub- and supermicron concentrations of Cl-, NO3-, SO4=, methanesulfonate (MSA-), Na+, NH4+, K+, Mg+2, and Ca+2. Sampling periods ranged from 4 to 6 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. 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. 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., 1998]. 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. Non-sea salt sulfate concentrations were calculated from Na+ concentrations and the ratio of sulfate to sodium in seawater. 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# subNa ug/m3 2-stage impactor -- ion chromatographic analysis 0 50 -999 1920 #PARAMETER# supNa ug/m3 2-stage impactor -- ion chromatographic analysis 0 50 -999 1921 #PARAMETER# subNH4 ug/m3 2-stage impactor -- ion chromatographic analysis 0 50 -999 1923 #PARAMETER# supNH4 ug/m3 2-stage impactor -- ion chromatographic analysis 0 50 -999 1924 #PARAMETER# subK ug/m3 2-stage impactor -- ion chromatographic analysis 0 50 -999 1926 #PARAMETER# supK ug/m3 2-stage impactor -- ion chromatographic analysis 0 50 -999 1927 #PARAMETER# subMg ug/m3 2-stage impactor -- ion chromatographic analysis 0 50 -999 1929 #PARAMETER# supMg ug/m3 2-stage impactor -- ion chromatographic analysis 0 50 -999 1930 #PARAMETER# subCa ug/m3 2-stage impactor -- ion chromatographic analysis 0 50 -999 1932 #PARAMETER# supCa ug/m3 2-stage impactor -- ion chromatographic analysis 0 50 -999 1933 #DATA 2 HEADINGS# Y M D HR Min Dur DayOfYear LAT LONGT subNa supNa subNH4 supNH4 subK supK subMg supMg subCa supCa Y M D HR Min Min DecimalDay Deg Deg ug/m3 ug/m3 ug/m3 ug/m3 ug/m3 ug/m3 ug/m3 ug/m3 ug/m3 ug/m3 2002 7 13 20 42 930 195.185753 36.577 -74.196 0.038543643 1.655907459 0.167832062 0.003695896 0.004899695 0.0600685 0.005184615 0.174593718 0.00487167 0.032746725 2002 7 14 13 33 193 195.6315995 38.649 -72.909 0.046261421 1.77807947 0.659640644 0.004181734 0.011915158 0.071630075 0.009750753 0.164836623 0.00898556 0.032770163 2002 7 15 2 18 432 196.245949 40.19 -73.239 0.022216144 0.558554926 0.479259934 0.009259824 0.01200535 0.015314643 0.00215801 0.048289861 0.000488392 0.01066408 2002 7 15 12 48 310 196.6414035 40.492 -73.875 0.016616309 0.198924007 2.419989383 0.120812192 0.046466984 0.014151098 0.002192859 0.024270256 0.013635875 0.0367367 2002 7 15 19 9 328 196.9119495 40.495 -73.876 0.046658633 0.952312141 3.852025973 0.033123729 0.052484173 0.035039651 0.004100963 0.092063029 0.015466875 0.085643702 2002 7 16 11 7 305 197.5691985 40.211 -73.404 0.010465873 0.42721876 0.722298055 0.001513975 0.055786161 0.018876074 0.004545398 0.041932942 0.036420476 0.084240906 2002 7 16 17 59 227 197.828453 40.317 -73.825 0 0.221711081 0.039457321 0 0 0.008310081 0 0.01925013 0.00211837 0.025739463 2002 7 17 0 38 563 198.22245 40.38 -71.841 0.012081039 0.304572355 0.266767245 0 0.015817213 0.014887745 0.002132825 0.026575575 0.008672993 0.016786001 2002 7 17 10 55 306 198.561203 40.423 -69.594 0.01650681 0.21696659 0.286209443 0.011835448 0.01646568 0.009601968 8.22599E-05 0.017269583 0.007718716 0.020001608 2002 7 17 17 5 360 198.8376465 41.437 -69.387 0.014363586 0.414648504 0.42011834 0.002900397 0.015240625 0.019532551 0.000496437 0.034082677 0.00190301 0.015139833 2002 7 18 0 0 509 199.17675 42.442 -70.874 0.02358725 0.391508316 0.808319317 0.009549262 0.046561231 0.017554632 0.005377893 0.037419384 0.015772008 0.048855627 2002 7 18 10 53 192 199.52005 42.332 -70.713 0.024683754 0.436257995 1.840037681 0.030904603 0.072755584 0.022583518 0.004348206 0.057001823 0.020972406 0.145179761 2002 7 18 14 47 207 199.6880495 42.353 -70.801 0.188597411 0.186809619 3.934324686 0.024482005 0.041292624 0.013227708 0.003814933 0.059417221 0.038982171 0.321392263 2002 7 18 18 54 356 199.9109495 42.434 -70.822 0.018826468 0.26422309 3.777949434 0.017618689 0.044217013 0.01379501 0.002487109 0.055466242 0.027248006 0.238682288 2002 7 19 2 8 432 200.2388995 42.359 -70.807 0.053666818 1.558163739 2.959883587 0.036803011 0.05784885 0.055289316 0.005068187 0.161989782 0.018205053 0.135984582 2002 7 20 10 7 236 201.5034485 42.947 -70.724 0.018460784 0.269720411 0.798272855 0.074897113 0.0255285 0.018825622 0.000312139 0.021663248 0.002742363 0.013977335 2002 7 20 14 52 273 201.7146985 42.956 -70.717 0.016751187 0.148241337 0.478836921 0.02283551 0.020398623 0.011354596 0 0.011958116 0.009784391 0.006540472 2002 7 21 10 36 341 202.5608065 42.935 -70.53 0.026462758 0.497924816 0.599541604 0.064713984 0.037769829 0.027142077 0.000196645 0.04196449 0.00273898 0.0176827 2002 7 21 17 18 343 202.8404005 42.906 -70.647 0.072336377 1.523299768 0.68227761 0.010443989 0.021034879 0.054692985 0.004693153 0.146297602 0.008360556 0.039272261 2002 7 22 1 28 642 203.284546 42.877 -70.661 0.027386189 1.004499979 0.505642571 0.012076008 0.019290855 0.041503027 0.000450144 0.098941949 0.003797184 0.036206903 2002 7 22 13 56 538 203.767952 42.822 -70.629 0.017084764 0.713515243 2.327235599 0.053640209 0.05090896 0.031340793 0 0.067678135 0.024627505 0.066501699 2002 7 23 1 50 642 204.2994005 42.869 -70.401 0.036401479 1.108791931 1.832961435 0.067097114 0.05011421 0.04345979 0 0.105311473 0.007359429 0.042719839 2002 7 23 13 28 389 204.6965485 42.813 -70.717 0.036743043 0.813340867 4.315726903 0.097108296 0.053495072 0.036333164 0 0.078922869 0.025225213 0.081815576 2002 7 24 10 35 876 205.7451475 43.791 -69.349 0.013266523 0.168094113 0.086809678 0 0.014818641 0.0150548 0.001426859 0.015399385 0.004634569 0.007291736 2002 7 25 11 33 616 206.6957015 42.991 -70.479 0.009498757 0.295316042 0.262077104 0 0.016450567 0.015507627 0.000664421 0.026621575 0.004367952 0.013225778 2002 7 30 0 7 725 211.2569045 42.522 -70.681 0.008269578 0.173795142 0.541170182 0.01043861 0.012198252 0.012369163 0.000886918 0.017361344 0.008563136 0.021803886 2002 7 30 13 25 168 211.6175005 42.25 -70.364 0.02969605 0.144217183 3.230070401 0.069972512 0.051018215 0.012507427 0.004749368 0.016488716 0.032670655 0.051465882 2002 7 30 17 22 242 211.8076935 42.304 -70.692 0.009242394 0.338657131 1.225199706 0.00076255 0.015708186 0.012977479 0.001359176 0.03051614 0.021183722 0.028172003 2002 7 30 22 23 729 212.1860505 42.418 -70.664 0.010904451 0.179750895 0.491232217 0.002365086 0.029455316 0.01313106 0.003179457 0.01738206 0.023277739 0.015056539 2002 7 31 11 13 314 212.5770035 42.506 -70.703 0.010031108 0.120733939 0.633433285 0.017331611 0.022116609 0.010943027 0.004732189 0.011839489 0.040847011 0.038692152 2002 7 31 17 49 247 212.828102 42.32 -70.789 0.003781167 0.061073667 1.059620624 0.015799655 0.016791821 0.006949848 0.002715566 0.006249864 0.020676111 0.018749591 2002 8 1 11 5 299 213.566147 42.994 -70.655 0.010911299 0.15782681 0.47032114 0.003268229 0.024108925 0.009781753 0.003248161 0.015068257 0.032213561 0.035617966 2002 8 1 17 13 265 213.8095475 42.983 -70.688 0.007654569 0.366396338 0.224076067 0.001165731 0.014802105 0.016296441 0 0.031462837 0.005675503 0.012216383 2002 8 1 22 56 1186 214.3674015 42.84 -70.492 0.021176297 0.724263793 0.238635074 0.006011112 0.012413829 0.034605839 0.000851189 0.071482478 0.002143881 0.026199539 2002 8 2 23 17 671 215.203247 42.884 -70.548 0.014326893 0.330088509 0.555333849 0.013014747 0.017081552 0.023720503 0.001320635 0.030545605 0.007170116 0.018054747 2002 8 3 11 8 340 215.5820465 42.95 -70.719 0 0.272213999 1.13972275 0.012437545 0.040771264 0.024294271 0 0.025606121 0.010395915 0.025926573 2002 8 3 17 42 424 215.8849025 42.947 -70.589 0 0.302653025 1.575028036 0.009182871 0.045326471 0.018661034 0 0.028477704 0.008189861 0.025935309 2002 8 4 2 16 459 216.2537995 42.656 -69.859 0.011859029 0.23527292 2.016958485 0.009894279 0.036583811 0.016147893 0.001237624 0.021830554 0.010667584 0.019607196 2002 8 4 11 11 500 216.6402515 42.923 -70.675 0.025117608 0.428421959 1.48634802 0.018208213 0.061375508 0.023892119 0.002078076 0.039425938 0.006821509 0.030167414 2002 8 4 21 46 758 217.1707 42.844 -70.725 0.02079219 0.57876481 2.522570756 0.009291289 0.039143799 0.027332077 0.002835299 0.05605906 0.009623337 0.02816902 2002 8 5 11 10 480 217.632553 42.814 -70.64 0.110590098 0.46782666 3.552204295 0.018874026 0.092942184 0.022414893 0.006415834 0.047582381 0.041842776 0.039394524 2002 8 5 20 30 372 217.9835435 42.809 -70.663 0.014137309 0.301426265 3.53558706 0.007643394 0.047136028 0.014514813 0.003336032 0.031676395 0.030549185 0.071233715 2002 8 7 3 48 505 219.3342515 40.048 -69.868 0.040018916 1.305300741 0.089452091 0.002455631 0.007459885 0.051531953 0.007568 0.131098014 0.007343455 0.055511768 2002 8 7 12 59 420 219.686752 39.336 -72.088 0.02479167 0.682726688 0.114906787 0.001274355 0.008020245 0.023994288 0.008070309 0.065640215 0.007159145 0.028625658 2002 8 8 0 48 682 220.2703935 37.671 -75.07 0.016396021 0.119113334 0.307538327 0.005416219 0.00680953 0.005768926 0.007958846 0.012566981 0.010915179 0.026274219 2002 8 8 13 5 541 220.733345 36.817 -75.843 0.028710814 0.096715711 0.442804876 0 0.011859212 0.005891785 0.010953999 0.010420346 0.013559916 0.023287845 2002 8 8 22 54 785 221.2273485 36.822 -75.839 0.034310754 0.055728561 0.495025426 0 0.019297631 0.003576468 0.008239438 0.005998626 0.00911542 0.021881424