ABSTRACT Urban areas with a lot of industrial and technological activities, and also with densely traffic, re¬sult in the increasing of air pollution. 70 % of toxic gases existed in big cities' air are coming from motor engined vehicles. Meanwhile, the low quality of indoor air are mostly caused by internal source of contaminants. The purposes of the study were to find out the amount of car…
Udara merupakan faktor penting dalam kehidupan. Pencemaran udara berpengaruh terhadap terjadinya hujan asam. Asam sulfat (H2SO4) dan asam nitrat (HNO3) dalam hujan asam dapat terinhalasi ke dalam sistem pernapasan. Alveoli adalah komponen fisiologik penting dari sistem pernapasan. Tujuan penelitian ini adalah untuk mengetahui pengaruh paparan akut material hujan asam berupa H2SO4 dan HNO3 terha…
Background: Recent evidences had demonstrated a link between halitosis and apoptosis in periodontitis. Periodontal pathogenic micro-organisms produce volatile sulfur compounds (VSCs). VSCs are toxic to periodontal tissue. Purpose: The purpose of this paper was to reveal the mechanism of VSCs in periodontal breakdown according to the most recent knowledges. Reviews: Halitosis is mainly attribute…