In 2012, administrative assistants averaged $33,560 a year, according to the Bureau of Labor Statistics. But this figure accounts for all administrative support, regardless of employer.Those working for dental offices averaged closer to $35,020.With training as a medical secretary, administrators working in dental offices can expect even higher salaries, at an average of $36,960.hose working for dental offices averaged closer to $35,020. With training as a medical secretary, administrators working in dental offices can expect even higher salaries, at an average of $36,960.
Human Sources of Sulfur Oxides; Wood Smoke; Contributors; It has been estimated that on a global basis, natural sources, such as volcanoes, contribute about as the same amount of sulfur oxides to the atmosphere as human industrial activities. This amounts to 75-100 million tons from each source per year. However, in industrial countries such as in Europe and North America, human activities contribute 95 % of the sulfur oxides and natural sources only 5 %. In the Western States, natural sources of sulfur oxides may be more important.
Sulfur trioxide (alternative spelling, sul ph ur trioxide) is the chemical compound with the formula SO 3.In the gaseous form, this species is a significant pollutant, being the primary agent in acid rain. It is prepared on massive scales as a precursor to sulfuric acid.n terms of electron-counting formalism, the sulfur atom has an oxidation state of +6 and a formal charge of +3. The Lewis structure consists of an S=O double bond and two SâO dative bonds without utilizing d-orbitals. The electrical dipole moment of gaseous sulfur trioxide is zero.