http://www.sciencemag.org/news/2020/09/absolutely-horrendous-scientists-discuss-beirut-s-blast-and-how-they-are-coping-its

Beirut residents began to clean up their city soon after a 4 August explosion. Researchers are testing air and dust samples for toxic compounds.

One month ago, today, 2750 tons of ammonium nitrate exploded in the port of Beirut, killing more than 200 people, wounding 5000 others, and leaving 300,000 residents temporarily homeless. The explosion, which left Lebanon’s main port and surrounding homes and businesses in ruins, has exacerbated the COVID-19 pandemic in a country that’s also grappling with inept leadership, a worsening economic crisis, and a 55% poverty rate.