Nicotine and PM2.5 concentrations (µg/m3) by type of outdoor area (paired samples). IMPASHS study, 2009–2010.
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https://figshare.com/articles/dataset/_Nicotine_and_PM2_5_concentrations_g_m_3_by_type_of_outdoor_area_paired_samples_IMPASHS_study_2009_8211_2010_/268754
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aWilcoxon test for comparison of medians from indoor/outdoor areas.bMann-Whitney U-test for comparison of medians from areas where smoking was allowed/banned.cOpen area was defined as an outdoor area with no roof and no surrounding walls.dSemi-closed was defined as an outdoor area with at least one wall or roof.*p**p
创建时间：
2015-12-02
