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Air pollution linked to lower birth weight

Summary by Air Quality News
Exposure to PM2.5 during pregnancy, particularly in the earliest weeks, may reduce infant birth weight, according to a new cohort study in the US. The research, based on nearly 17,000 mother–newborn pairs, found that higher exposure was associated with lower birth weight relative to gestational age. The strongest effects were observed during early pregnancy, a period when key developmental processes are underway. While previous studies have link…
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Air Quality News broke the news in on Monday, January 5, 2026.
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