@misc{indiciae456c81a64af1,
  title = {Air pollution surveillance systems.},
  author = {G B Morgan and G Ozolins and E C Tabor},
  year = {1970},
  doi = {10.1126/science.170.3955.289},
  url = {https://pubmed.ncbi.nlm.nih.gov/5460030/},
  note = {Source identifier: 5460030}
}