Worldwide Solutions - February 2008 - (Page 24) GERSTEL Solutions Worldwide Application Concentrations of HAPs in the squib reactor Halogenated and aromatic compounds Dichloromethane trans-1,2-Dichloroethylene 1,1-Dichloroethane Chloroform Benzene Trichloroethylene Toluene Chlorobenzene Ethylbenzene m,p-Xylene o-Xylene Styrene Isopropylbenzene n-Propylbenzene 1,3,5-Trimethylbenzene 2-chlorotoluene tert-Butylbenzene 1,2,4-Trimethylbenzene sec-Butylbenzene p-Isopropyltoluene 1,3-Dichlorobenzene 1,4-Dichlorobenzene n-Butylbenzene 1,2-Dichlotobenzene 1,2,4-Trichlorobenzene Naphthalene 1,2,3-Trichlorobenzene Sum Concentrations of HAPs in Haeundae beach air during firework Halogenated and aromatic compounds Dichloromethane Benzene Toluene Ethylbenzene m,p-xylene O-xylene Styrene Isopropylbenzene n-Propylbenzene 1,3,5-Trimethylbenzene 1,2,4-Trimethylbenzene 1,4-Dichlorobenzene Naphthalene 1,2,3-Trichlorobenzene Sum ppb 2877 2005 1106 6.085 91360 26.21 6954 284.0 818.4 484.8 699.2 2133 22.13 57.26 28.45 1.135 0.000 99.76 1.403 41.34 10.82 1.047 24.31 0.696 2.100 422.8 2.260 109500 Isoparaffinic compounds 3-Methylpentane 2,4-Dimethylhexane Sum Olefinic compounds 3-Methyl-1-butene 1-Pentene 2-Methyl-1-butene cis-2-Pentene 2-Methyl-1,3-butadiene 1-Hexene trans-2-Hexene 2-Methylpentene-2 cis-2-Hexene 1-Heptene trans-3-Heptene trans-2-Heptene 1-Octene 1-Nonene cis-2-Nonene 1-Decene Sum Naphthenic compounds Methylcyclopentane trans-1,3-Dimethylcyclopentane cct-1,2,4-Trimethylcyclopentane Sum ppb 26.59 0.065 26.66 ppb 14.71 43.29 19.08 19.44 11.34 18.42 2.762 0.326 0.108 2.304 0.205 0.128 2.449 2.604 0.283 4.804 142.3 ppb 0.792 2.245 3.392 6.429 ppb 476 690 557 6.05 4.66 3.58 9.84 0.33 0.93 1.04 3.27 1.51 1.49 N.D. 1760 Isoparaffinic compounds 2-Methylheptane 3-Methylheptane 2-Methyloctan 3-Methyloctan Sum Olefinic compounds 1-Pentene 1-Heptene 1-Decene Sum Naphthenic compounds Methylcyclopentane Methylcyclohexane t-1-Methyl-2-(4MP)cyclopentane Sum ppb N.D. N.D. N.D. N.D. ppb 41.1 12.2 8.56 61.9 ppb 9.90 0.68 0.05 10.6 Seasonal variations in concentration for various aromatic compounds Aromatic compounds Benzene Toluene Ethylbenzene m,p-Xylene Styrene o-Xylene Bromobenzene n-Propylbenzene 1,2,4-Trimetylbenzene tert-Butylbenzene sec-Butylbenzene n-Butylbenzene Sum BTEX Spring (ppb) 2.50 5.99 9.80 8.88 1.94 6.27 N.D.* 0.90 4.80 N.D. N.D. N.D. 41.1 33.4 Summer (ppb) 1.70 2.43 0.39 0.45 0.11 0.28 N.D.* 0.03 0.16 N.D. N.D. N.D. 5.55 5.25 Autumn (ppb) N.D.* 1.57 0.25 0.34 N.D.* 0.20 N.D.* N.D. 0.09 N.D. N.D. N.D. 2.45 2.36 Winter (ppb) 0.84 7.25 1.19 1.82 1.18 1.45 N.D.* 0.62 2.82 N.D. N.D. 0.28 17.5 12.6 GERSTEL Gas Sampler GS 1 than the levels measured at the reference site. „Setting off firecrackers has a tremendous influence on air quality”, the scientists conclude. Professor Gon Ok and his colleagues have come to a clear and unequivocal conclusion: They are proposing changes in legislation that would restrict the use of fireworks in order to protect the health of people living in affected areas. GERSTEL Gas Sampler GS 1 In Germany, scientists involved are not ready to go quite that far. The approach taken is more cautious in spite of clear evidence as to the pollution caused by fireworks. The UBA on its homepage appeals to common sense: “Traditions and customs are part of our lives and should remain so. We are, however, asking you for help in limiting the amount of fine particulate matter released into our atmosphere on New Year’s Eve. Please reduce or completely eliminate your personal fireworks. In this way you will not only help improve the environment directly, you will help eliminate garbage from packaging material and spent fireworks while also reducing the amount of energy needed for fireworks production.” GERSTEL Solutions Worldwide – February 2008 24
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