Estimates of indoor suspended MP fragment concentrations, based on all available literature observations in the 1.0 - 300 µm range shown in Fig 4 and fitted by the power law, y = 5979x^-2.331. <i>Suspended NP concentrations in the 0.1–1.0 µm and 0.01–0.1 µm range are based on extrapolation of observed MP. Daily inhalation for children and adults is estimated based on concentrations and inhalation rates of 11 ± 3 and 16 ± 4 m</i>^<i>3</i> <i>per day respectively. All uncertainties are 1</i>σ <i>standard deviations. MP mass concentrations in picogram per m</i>^<i>3</i> <i>are estimated by assuming a MP density of 1 g/cm</i>^<i>3</i><i>, and an ellipsoidal MP fragment shape, and volume, V = 0.1 x D</i>^<i>3</i><i>, where D is MP diameter.</i>

Estimates of indoor suspended MP fragment concentrations, based on all available literature observations in the 1.0 - 300 µm range shown in Fig 4 and fitted by the power law, y = 5979x-2.331. Suspended NP concentrations in the 0.1–1.0 µm and 0.01–0.1 µm range are based on extrapolation of observed MP. Daily inhalation for children and adults is estimated based on concentrations and inhalation rates of 11 ± 3 and 16 ± 4 m3 per day respectively. All uncertainties are 1σ standard deviations. MP mass concentrations in picogram per m3 are estimated by assuming a MP density of 1 g/cm3, and an ellipsoidal MP fragment shape, and volume, V = 0.1 x D3, where D is MP diameter.本数据集针对室内悬浮微塑料（Microplastic, MP）碎片浓度的估算基于图4中收录的1.0~300 µm粒径范围内所有已发表观测数据，并通过幂律方程y = 5979x^(-2.331)进行拟合得到。针对0.1~1.0 µm与0.01~0.1 µm粒径范围内的悬浮纳米塑料（Nanoplastic, NP）浓度，则通过已观测到的微塑料数据外推获得。结合上述浓度数据，以及儿童、成人每日分别为11±3 m³和16±4 m³的呼吸速率，可估算得到两类人群的每日吸入量。所有不确定度均为1σ标准偏差。本数据集以皮克每立方米为单位估算微塑料质量浓度，假设微塑料密度为1 g/cm³，形状为椭球形碎片，体积计算公式为V = 0.1×D³，其中D为微塑料粒径。