Scientific Publications Outdoor Air Pollution, Preterm Birth, and Low Birth Weight: Analysis of the World Health Organization Global Survey on Maternal and Perinatal Health Published 2014 Share SHARE Facebook share Twitter LinkedIn Copy URL Email Read more Breadcrumb Home Resource Library Outdoor Air Pollution, Preterm Birth, and Low Birth Weight: Analysis of The World Health Organization Global Survey On Maternal and Perinatal Health Conclusions – Outdoor PM2.5 concentrations were associated with low birth weight but not pre-term birth. In rapidly developing countries, such as China, the highest levels of air pollution may be of concern for both outcomes. Fleischer, N. L., M Merialdi, A. van Donkelaar, F. Vadillo-Ortega, R. V. Martin, A. P. Betran, J. P. Souza, & M. S. O´Neill (2014) Outdoor Air Pollution, Preterm Birth, and Low Birth Weight: Analysis of the World Health Organization Global Survey on Maternal and Perinatal Health, Environmental Health Perspectives 122:425-430.