exposure was associated with a higher RR for AML compared with ALL, but the summary estimates were statistically unstable, being based on two studies only.
The proportion of 1,3-butadiene
in the exhaust gas Generator Alkylate Petrol_ load, W petrol Addinol Oil 100W 8.64 13.40 200W 6.54 9.60 300W 6.91 7.03 Note: Table made from bar graph
In addition, it should be noted that 1,3-butadiene
emissions are totally attributed to gasoline vehicles, while PM2.5 is mainly related with diesel engines.
1, [a.sub.0] is the independent term, [x.sub.i] represents the independent polymerization variables (DEAC/Nd ratio, reaction temperature, catalyst concentration, and 1,3-butadiene
concentration), [y.sub.k] represents model responses (catalyst activity, molecular weight averages, and PDI), and [a.sub.i] and [a.sub.ij] are model parameters (variable effects).
Henry's law constants and infintite dilution activity coefficients of propane, propene, butane, 2-methylpropane, 1-butene, 2-methylpropene, trans-2-butene, cis-2-butene, 1,3-butadiene
, dimethyl ether, chloroethane, and 1,1-difluoroethane in 2-propen-l-ol.
The carcinogenicity of 1,3-butadiene
is mediated through the creation of highly reactive epoxide intermediates formed during 1,3-butadiene
metabolism, which damage DNA through the formation of DNA adducts (Goggin et al.
"Any release of carcinogens (like benzene, 1,3-butadiene
) adds to the increased cancer risk for those living near these plants," Metzger said in an email.
Evaporative emissions of 1,3-butadiene
from petrolfuelled motor vehicles, Atmospheric Environment 32(14 15): 2685-2692.
To get an idea on the propagation rate of the polymerization of 1,3-butadiene
with A1/Li/Ba/cyclohexane solutions a series of polymerizations was carried out by keeping constant the catalyst composition (1:1:0.25 of Al: Li: Ba molar ratio) and changing the polymerization temperature (40-80[degrees]C).
Researchers also found similar levels of toxic compounds such as benzene, 1,3-butadiene
, ethyl benzene, toluene, xylene, and MTBE, all considered toxic by ARB and the U.S.
(a).undergoes vigorous polymerization, decomposition, or condensation; e.g., styrene, 1,3-butadiene