Field Investigation of PM2.5 in Schoolchildren's Houses and Classrooms in Changsha, China

Jinhua Hu, Nianping Li, Hiroshi Yoshino, U. Yanagi

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)


PM2.5 concentrations in ten schoolchildren's houses and two classrooms in Changsha, China were measured. The objective was to understand the current status of PM2.5 levels in the residential and classroom environment, examine the differences of PM2.5 pollution at home between the children with one or more respiratory and allergic symptoms and those healthy ones. According to the obtained results, the indoor PM2.5 concentrations in all investigated families were much higher than the Chinese national standard limit (75 μg/m3). And the average concentrations of PM2.5 in Group A (unhealthy children) were higher than those of Group B (healthy children), indicating that PM2.5 could have adverse effects on the health of children. The PM2.5 concentrations in two classrooms also exceeded the upper limit. The Pearson correlation coefficients (r > 0.9) implied that indoor PM2.5 mainly come from outdoor air. Some effective measures should be taken to control the indoor and outdoor PM2.5 level.

Original languageEnglish
Pages (from-to)1433-1438
Number of pages6
JournalProcedia Engineering
Publication statusPublished - 2017
Event10th International Symposium on Heating, Ventilation and Air Conditioning, ISHVAC 2017 - Jinan, China
Duration: 2017 Oct 192017 Oct 22


  • Air pollution
  • Children's health
  • Houses
  • PM
  • Schoolchildren

ASJC Scopus subject areas

  • Engineering(all)


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