Air pollution exposure associates with increased risk of neonatal jaundice

• Published in: Nature communications 2019-08, Vol.10 (1), p.3741-9, Article 3741
• Main Authors: Zhang, Liqiang, Liu, Weiwei, Hou, Kun, Lin, Jintai, Song, Changqing, Zhou, Chenghu, Huang, Bo, Tong, Xiaohua, Wang, Jinfeng, Rhine, William, Jiao, Ying, Wang, Ziwei, Ni, Ruijing, Liu, Mengyao, Zhang, Liang, Wang, Ziye, Wang, Yuebin, Li, Xingang, Liu, Suhong, Wang, Yanhong
• Format: Article
• Language: English
• Subjects: 692/499; 704/172/4081; Air Pollutants - analysis; Air Pollutants - toxicity; Air pollution; Air Pollution - analysis; Air quality; Beijing; Bilirubin; Bilirubin - blood; Environmental risk; Exposure; Female; Humanities and Social Sciences; Humans; Infant, Newborn; Irradiance; Jaundice; Jaundice, Neonatal - chemically induced; Levels; Maternal Exposure - adverse effects; multidisciplinary; Neonates; Outdoor air quality; Particulate matter; Particulate Matter - analysis; Particulate Matter - toxicity; Pollution; Pregnancy; Prenatal Exposure Delayed Effects; Risk; Science; Science (multidisciplinary); Sulfur dioxide; Visibility
• ISSN: 2041-1723; 2041-1723
• DOI: 10.1038/s41467-019-11387-3

Clinical experience suggests increased incidences of neonatal jaundice when air quality worsens, yet no studies have quantified this relationship. Here we reports investigations in 25,782 newborns showing an increase in newborn’s bilirubin levels, the indicator of neonatal jaundice risk, by 0.076 (95% CI: 0.027–0.125), 0.029 (0.014–0.044) and 0.009 (95% CI: 0.002–0.016) mg/dL per μg/m 3 for PM 2.5 exposure in the concentration ranges of 10–35, 35–75 and 75–200 μg/m 3 , respectively. The response is 0.094 (0.077–0.111) and 0.161 (0.07–0.252) mg/dL per μg/m 3 for SO 2 exposure at 10–15 and above 15 μg/m 3 , respectively, and 0.351 (0.314–0.388) mg/dL per mg/m 3 for CO exposure. Bilirubin levels increase linearly with exposure time between 0 and 48 h. Positive relationship between maternal exposure and newborn bilirubin level is also quantitated. The jaundice−pollution relationship is not affected by top-of-atmosphere incident solar irradiance and atmospheric visibility. Improving air quality may therefore be key to lowering the neonatal jaundice risk. Air pollution has become a major health risk in China. Here Zhang et al. report that maternal and neonatal exposure to particulate matter increases the risk of neonatal jaundice based on the study of 25,782 newborns born in China between 2014 and 2017.