About the Authors

Linyan Li

linyan.li@mail.harvard.edu

Affiliation Department of Environmental Health, Harvard School of Public Health, Boston, MA, United States of America

Gary Adamkiewicz

Affiliation Department of Environmental Health, Harvard School of Public Health, Boston, MA, United States of America

Yinping Zhang

Affiliation Department of Building Science, Tsinghua University, Beijing, China

John D. Spengler

Affiliation Department of Environmental Health, Harvard School of Public Health, Boston, MA, United States of America

Fang Qu

Affiliation Department of Building Science, Tsinghua University, Beijing, China

Jan Sundell

Affiliation Department of Building Science, Tsinghua University, Beijing, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: YZ JS. Performed the experiments: YZ FQ JS LL. Analyzed the data: LL GA JDS. Wrote the paper: LL GA JS.