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Despite common belief that SO 2 was the main source of the asthma, by investigating sulfur dioxide and sulfur trioxide levels in Yokkaichi and analyzing compound toxicity levels, a study conducted in 1984 from Yokohama National University concluded that respiratory diseases were not a result of sulfur dioxide, but rather due to a titanium oxide ...
Sulfur mustard is a vesicant alkylating agent with strong cytotoxic, mutagenic, and carcinogenic properties. After exposure, victims show skin irritations and blisters. [18] [19] This agent also causes respiratory tract lesions, bone marrow depression, and eye damage, the epithelial tissues of these organs being predominately affected ...
Asthma is a respiratory disease that can begin or worsen due to exposure at work and is characterized by episodic narrowing of respiratory airways. Occupational asthma has a variety of causes, including sensitization to a specific substance, causing an allergic response; or a reaction to an irritant that is inhaled in the workplace. Exposure to ...
Nitrogen dioxide is an irritant of the mucous membrane linked with another air pollutant that causes pulmonary diseases such as obstructive lung disease, asthma, chronic obstructive pulmonary disease and sometimes acute exacerbation of COPD and in fatal cases, deaths. [2]
Rather, dry mouth is a side effect of over 600 prescription medications, Messina notes, and it may also be symptomatic of a chronic disease. In these cases, Messina says, “we see a fundamental ...
The amount of sulfur dioxide that can be emitted into the atmosphere is capped by the EPA. This reduces the quantity of sulfur dioxide in the air that turns into sulfur trioxide and sulfuric acid. [14] Sulfuric acid concentrations in workroom air are restricted by OSHA to 1 mg/m 3. Moreover, NIOSH advises a time-weighted average limit of 1 mg/m ...
Sulfur trioxide is a reagent in sulfonation reactions. Dimethyl sulfate is produced commercially by the reaction of dimethyl ether with sulfur trioxide: [20] CH 3 OCH 3 + SO 3 → (CH 3) 2 SO 4. Sulfate esters are used as detergents, dyes, and pharmaceuticals. Sulfur trioxide is generated in situ from sulfuric acid or is used as a solution in ...
Thus, the impact of chronic mouth breathing on health is a research area within orthodontics (and the related field of myofunctional therapy) [9] and anthropology. [10] It is classified into three types: obstructive, habitual, and anatomic. [11]: 281 There is a noted order of cause and effect leading to airway dysfunction related to mouth ...