2022
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Hace 16 horas · According to the EPA, these can remove at least 99.97% of dust, pollen, mold, bacteria, and other airborne particles. If the air quality index goes over 100, don’t exercise outside. If it’s over 150, don’t exercise at all. When the index is lower than 100 but still relatively high, you can exercise outside, but only in the early morning ...
Hace 16 horas · 1894 in music, 1894 in Norwegian music – Cello Concerto and Humoresques by Antonín Dvořák. 1893 in music, 1893 in Norwegian music – Symphony No. 9 and String Quartet No. 12 by Antonín Dvořák; Symphony No. 3 by Gustav Mahler; Karelia Suite by Jean Sibelius; Death of Pyotr Ilyich Tchaikovsky, Russian composer.
