While celebrating the end of examinations in the spring of 1943, sixth form students at Kesteven and Grantham Girls School spilled ink onto parquetry: Occupational exposures constitute the highest risk of toxicity and common domestic exposures result from the mixing of<unk>  bleach with acidic washing agents such as acetic, nitric and phosphoric acid or ammonia. They also occur as a result of the<unk> tion of table water. Other exposure risks occur during industrial or transportation accidents. Wartime exposure is rare. Dose toxicity Humans can smell<unk> <unk>  at ranges from 0.1–0.3 ppm. According to a review from 2010: "At 1–3 ppm, there is mild mucous membrane irritation that can usually be tolerated for about an hour. At 5–15 ppm, there is moderate mucous membrane irritation. At 30 ppm and beyond, there is immediate chest pain, shortness of breath, and cough. At approximately 40–60 ppm, a toxic pneumonitis and/or acute pulmonary edema can develop. Concentrations of about 400 ppm and beyond are generally fatal over 30 minutes, and at 1,000 ppm and above, fatality ensues within only a few minutes."
Chlorine gas poisoning
Carbon monoxide poisoning
Nitrogen dioxide poisoning
Cyanide poisoning
Salicylate poisoning
Arsenic poisoning
Organophosphate poisoning
Aluminium phosphide poisoning