Fig. 2From: Trimester effects of source-specific PM10 on birth weight outcomes in the Avon Longitudinal Study of Parents and Children (ALSPAC)Distributions of source-specific PM10 exposure level in each trimester (T1, T2, and T3) and combined across whole pregnancy period (WP) (a, b, c) (n = 12,020). a PM10_road: Local road traffic source PM10 exposure level in T1, T2, T3 and WP. b PM10_other: Local non-traffic source PM10 exposure level in T1, T2, T3 and WP. c PM10_total: Total sources PM10 exposure level in T1, T2, T3 and WPBack to article page