. 2024 May 14;58(21):9082–9090. doi: 10.1021/acs.est.3c10191

Table 2. Maternal Exposure Levels of PM₁, PM_2.5, and PM_1-2.5 during the First Trimester^a.

variables (μg/m³)	mean	SD	median	Q1	Q3	IQR
PM₁	33.14	8.46	33.83	27.14	38.55	11.41
PM_1–2.5	12.91	7.03	13.26	7.17	19.23	12.06
PM_2.5	44.62	12.33	45.04	36.12	52.75	16.63

PM₁, particulate matter with an aerodynamic diameter less than or equal to 1 μm; PM_1–2.5, particulate matter with an aerodynamic diameter between 1 and 2.5 μm; PM_2.5, particulate matter with an aerodynamic diameter less than or equal to 2.5 μm; SD, standard deviation; Q, quartile; and IQR, interquartile range.

Table 2. Maternal Exposure Levels of PM1, PM2.5, and PM1-2.5 during the First Trimestera.

Table 2. Maternal Exposure Levels of PM₁, PM_2.5, and PM_1-2.5 during the First Trimester^a.