@misc{indiciae959d9592ee87,
  title = {Particle concentrations in urban microenvironments.},
  author = {J I Levy and E A Houseman and L Ryan and D Richardson and J D Spengler},
  year = {2000},
  doi = {10.1289/ehp.108-1240162},
  url = {https://pubmed.ncbi.nlm.nih.gov/11102296/},
  note = {Source identifier: 11102296}
}