title: [Study on acute inhalation toxicity of Luowei, a plant molluscacide].
abstract: OBJECTIVE
  To study the acute inhalation toxicity of 50% Luowei, a plant molluscacide, in rats.
  
  
  METHODS
  Twenty adult Wistar rats, half male and half female, were given of 5000 mg/m³ of 50% Luowei through a dynamic inhalation device and the death and recovery of the rats were observed within 14 days, and LC₅₀ was drawn.
  
  
  RESULTS
  After exposure, the activities of the rats decreased and a few individual animals had scratching symptom, but the symptom disappeared after the exposure. No animals died during the whole observation period. Therefore, the acute inhalation LC₅₀ was greater than 5000 mg/m³ for rats, and Luowei belonged to low toxicity level.
  
  
  CONCLUSIONS
  50% Luowei will not cause animal death if it is inhaled into animal body. However, people still need to wear protective equipment in production and use.
authors.forename: Ping
authors.initials: P
authors.lastname: Yi
authors.forename: Cheng
authors.initials: C
authors.lastname: Peng
authors.forename: Shuang
authors.initials: S
authors.lastname: Li
mesh_terms: D000280:Administration, Inhalation; D000818:Animals; D001835:Body Weight / Q000187:drug effects; D005260:Female; D007928:Lethal Dose 50; D008297:Male; D008975:Molluscacides / Q000633:toxicity*; D051381:Rats; D017208:Rats, Wistar
chemical_list: D008975:Molluscacides