MINNEAPOLIS (AP) — Large groups of people used fireworks to target other people and police in Minneapolis over the Fourth of July holiday, even as police staffing d…
before being weighed pre- and post-sampling with an XS105 Mettler scale (Mettler-Toledo Inc., Highstown, NJ) in a temperature- and humidity-controlled weighing chamber (MTL, Minneapolis, MN). To measure real-time particle concentrations before, during, and after the fireworks event, pDR-1500...