Waste

As the highly contagious Omicron variant pushes national coronavirus case numbers to record highs and sends hospitals across the country into crisis mode, public health officials are eagerly searching for an indication of how long this surge might last.

The clues are emerging from an unlikely source: sewage.

People who contract the coronavirus shed the virus in their stool, and the virus levels in local wastewater provide a strong, independent signal of how much is circulating in a given community.

The sewage data reveal an Omicron wave that is cresting at different times in different places.

Across Brazil, recycling plants stopped running for months. In Uganda, a junkyard is short on reusable plastics. And in Indonesia’s capital, disposable gloves and face shields are piling up at a river mouth.

Surging consumption of plastics and packaging during the pandemic has produced mountains of waste. But because fears of Covid-19 have led to work stoppages at recycling facilities, some reusable material has been junked or burned instead.

At the same time, high volumes of personal protective equipment have been misclassified as hazardous, solid waste experts say. That material often isn’t allowed into the normal trash, so a lot of it is dumped in burn pits or as litter.