24 1001 Brian Heikes University of Rhode Island Formaldehyde From Coil Collection SONEX 1 1 1997 10 09 1997 10 11 0 mid-time of sample in UT s 3 1.0 1.0 1.0 999999 999999 99999 start-time of sample in UT (s) end-time of sample in UT (s) CH2O (pptv) 3 preliminary data for in-field exchange only reported data is not positive definite negative values denote lower limit of detection or upper limit of detection 4 Formaldehyde measurements used the method of Lazrus, et al., 1988. data below detection limit, ch2o=50, reported as -888 data greater than that which is recordable is reported as -777 mid start stop ch2o 44760 44730 44790 99999 44820 44790 44850 99999 44880 44850 44910 99999 44940 44910 44970 99999 45000 44970 45030 99999 45060 45030 45090 99999 45120 45090 45150 99999 45180 45150 45210 99999 45240 45210 45270 99999 45300 45270 45330 99999 45360 45330 45390 99999 45420 45390 45450 99999 45480 45450 45510 99999 45540 45510 45570 99999 45600 45570 45630 99999 45660 45630 45690 99999 45720 45690 45750 99999 45780 45750 45810 99999 45840 45810 45870 -888 45900 45870 45930 -888 45960 45930 45990 -888 46020 45990 46050 -888 46080 46050 46110 -888 46140 46110 46170 -888 46200 46170 46230 99999 46260 46230 46290 99999 46320 46290 46350 99999 46380 46350 46410 99999 46440 46410 46470 169 46500 46470 46530 229 46560 46530 46590 173 46620 46590 46650 170 46680 46650 46710 109 46740 46710 46770 114 46800 46770 46830 99999 46860 46830 46890 99999 46920 46890 46950 99999 46980 46950 47010 99999 47040 47010 47070 98 47100 47070 47130 110 47160 47130 47190 59 47220 47190 47250 -888 47280 47250 47310 99999 47340 47310 47370 99999 47400 47370 47430 99999 47460 47430 47490 99999 47520 47490 47550 99999 47580 47550 47610 99999 47640 47610 47670 114 47700 47670 47730 140 47760 47730 47790 133 47820 47790 47850 154 47880 47850 47910 62 47940 47910 47970 167 48000 47970 48030 99999 48060 48030 48090 99999 48120 48090 48150 99999 48180 48150 48210 99999 48240 48210 48270 -888 48300 48270 48330 68 48360 48330 48390 -888 48420 48390 48450 -888 48480 48450 48510 136 48540 48510 48570 -888 48600 48570 48630 99999 48660 48630 48690 99999 48720 48690 48750 99999 48780 48750 48810 99999 48840 48810 48870 119 48900 48870 48930 -888 48960 48930 48990 -888 49020 48990 49050 -888 49080 49050 49110 84 49140 49110 49170 77 49200 49170 49230 99999 49260 49230 49290 99999 49320 49290 49350 99999 49380 49350 49410 99999 49440 49410 49470 93 49500 49470 49530 73 49560 49530 49590 -888 49620 49590 49650 57 49680 49650 49710 71 49740 49710 49770 56 49800 49770 49830 99999 49860 49830 49890 99999 49920 49890 49950 99999 49980 49950 50010 99999 50040 50010 50070 -888 50100 50070 50130 -888 50160 50130 50190 -888 53040 53010 53070 -888 53100 53070 53130 -888 53160 53130 53190 -888 53220 53190 53250 -888 53280 53250 53310 -888 53340 53310 53370 53 53400 53370 53430 99999 53460 53430 53490 99999 53520 53490 53550 99999 53580 53550 53610 99999 53640 53610 53670 98 53700 53670 53730 63 53760 53730 53790 -888 53820 53790 53850 -888 53880 53850 53910 -888 53940 53910 53970 63 54000 53970 54030 99999 54060 54030 54090 99999 54120 54090 54150 99999 54180 54150 54210 99999 54240 54210 54270 -888 54300 54270 54330 -888 54360 54330 54390 -888 54420 54390 54450 -888 54480 54450 54510 -888 54540 54510 54570 -888 54600 54570 54630 99999 54660 54630 54690 99999 54720 54690 54750 99999 54780 54750 54810 99999 54840 54810 54870 64 54900 54870 54930 -888 54960 54930 54990 -888 55020 54990 55050 54 55080 55050 55110 -888 55140 55110 55170 -888 55200 55170 55230 99999 55260 55230 55290 99999 55320 55290 55350 99999 55380 55350 55410 99999 55440 55410 55470 53 55500 55470 55530 61 55560 55530 55590 -888 55620 55590 55650 62 55680 55650 55710 76 55740 55710 55770 -888 55800 55770 55830 99999 55860 55830 55890 99999 55920 55890 55950 99999 55980 55950 56010 99999 56040 56010 56070 -888 56100 56070 56130 -888 56160 56130 56190 -888 56220 56190 56250 -888 56280 56250 56310 -888 56340 56310 56370 -888 56400 56370 56430 99999 56460 56430 56490 99999 56520 56490 56550 99999 56580 56550 56610 99999 56640 56610 56670 118 56700 56670 56730 120 56760 56730 56790 -888 56820 56790 56850 -888 56880 56850 56910 -888 59100 59070 59130 127 59160 59130 59190 82 59220 59190 59250 -888 59280 59250 59310 52 59340 59310 59370 55 59400 59370 59430 99999 59460 59430 59490 99999 59520 59490 59550 99999 59580 59550 59610 99999 59640 59610 59670 -888 59700 59670 59730 -888 59760 59730 59790 -888 59820 59790 59850 113 59880 59850 59910 -888 59940 59910 59970 -888 60000 59970 60030 99999 60060 60030 60090 99999 60120 60090 60150 99999 60180 60150 60210 99999 60240 60210 60270 -888 60300 60270 60330 -888 60360 60330 60390 -888 60420 60390 60450 -888 60480 60450 60510 -888 60540 60510 60570 -888 60600 60570 60630 99999 60660 60630 60690 99999 60720 60690 60750 99999 60780 60750 60810 99999 60840 60810 60870 -888 60900 60870 60930 -888 60960 60930 60990 -888 61020 60990 61050 -888 61080 61050 61110 51 61140 61110 61170 -888 61200 61170 61230 99999 61260 61230 61290 99999 61320 61290 61350 99999 61380 61350 61410 99999 61440 61410 61470 56 61500 61470 61530 -888 61560 61530 61590 -888 61620 61590 61650 -888 61680 61650 61710 -888 61740 61710 61770 54 61800 61770 61830 99999 61860 61830 61890 99999 61920 61890 61950 99999 61980 61950 62010 99999 62040 62010 62070 -888 62100 62070 62130 -888 62160 62130 62190 -888 62220 62190 62250 -888 62280 62250 62310 -888 62340 62310 62370 -888 62400 62370 62430 99999 62460 62430 62490 99999 62520 62490 62550 99999 62580 62550 62610 99999 62640 62610 62670 57 62700 62670 62730 123 62760 62730 62790 80 62820 62790 62850 -888 62880 62850 62910 73 62940 62910 62970 55 63000 62970 63030 99999 63060 63030 63090 99999 63120 63090 63150 99999 63180 63150 63210 99999 63240 63210 63270 51 63300 63270 63330 -888 63360 63330 63390 70 63420 63390 63450 -888 63480 63450 63510 -888 63540 63510 63570 -888 63600 63570 63630 -888 63660 63630 63690 99999 63720 63690 63750 99999 63780 63750 63810 99999 63840 63810 63870 99999 63900 63870 63930 -888 63960 63930 63990 -888 64020 63990 64050 -888 64080 64050 64110 -888 64140 64110 64170 -888 64200 64170 64230 -888 64260 64230 64290 99999 64320 64290 64350 99999 64380 64350 64410 99999 64440 64410 64470 99999 64500 64470 64530 -888 64560 64530 64590 -888 64620 64590 64650 -888 64680 64650 64710 -888 64740 64710 64770 -888 64800 64770 64830 -888 66300 66270 66330 -888 66360 66330 66390 -888 66420 66390 66450 -888 66480 66450 66510 -888 66540 66510 66570 -888 66600 66570 66630 -888 66660 66630 66690 99999 66720 66690 66750 99999 66780 66750 66810 99999 66840 66810 66870 99999 66900 66870 66930 -888 66960 66930 66990 50 67020 66990 67050 60 67080 67050 67110 73 67140 67110 67170 -888 67200 67170 67230 127 67260 67230 67290 99999 67320 67290 67350 99999 67380 67350 67410 99999 67440 67410 67470 99999 67500 67470 67530 -888 67560 67530 67590 -888 67620 67590 67650 -888 67680 67650 67710 -888 67740 67710 67770 -888 67800 67770 67830 -888 67860 67830 67890 99999 67920 67890 67950 99999 67980 67950 68010 99999 68040 68010 68070 99999 68100 68070 68130 -888 68160 68130 68190 -888 68220 68190 68250 -888 68280 68250 68310 87 68340 68310 68370 158 68400 68370 68430 53 68460 68430 68490 99999 68520 68490 68550 99999 68580 68550 68610 99999 68640 68610 68670 99999 68700 68670 68730 99999 68760 68730 68790 99999 68820 68790 68850 99999 68880 68850 68910 99999 68940 68910 68970 99999 69000 68970 69030 99999 69060 69030 69090 99999 69120 69090 69150 99999 69180 69150 69210 99999 69240 69210 69270 99999 69300 69270 69330 99999 69360 69330 69390 99999 69420 69390 69450 99999 69480 69450 69510 99999 69540 69510 69570 99999 69600 69570 69630 99999 69660 69630 69690 99999 69720 69690 69750 99999 69780 69750 69810 99999 69840 69810 69870 99999 69900 69870 69930 99999 69960 69930 69990 99999 70020 69990 70050 99999 70080 70050 70110 99999 70140 70110 70170 99999 70200 70170 70230 99999 70260 70230 70290 99999 70320 70290 70350 99999 70380 70350 70410 99999 70440 70410 70470 99999 70500 70470 70530 99999 70560 70530 70590 99999 70620 70590 70650 99999 70680 70650 70710 99999 70740 70710 70770 99999 70800 70770 70830 99999 70860 70830 70890 99999