#pm25-and-heavy-metals

#pm25-and-heavy-metals

San Jose fire officials warned that lithium-ion batteries are highly toxic when ablaze due to 'highly irritating gases' like carbon monoxide.

The UK Health Security Agency reported around 1,504 heat-associated deaths in England during summer 2025, roughly half the predicted 3,039, despite the season being the warmest on record.

We created Earth in Action to provide a lens into what's happening on our planet, as it happens. Whether it's something typical, like the current air temperature, or an extreme event like a major dust storm, we wanted to provide an opportunity for people to see them.

"What surprised me is we are still seeing so many visits to emergency departments associated with very common household cleaning products," Lara McKenzie, Ph.D., stated, emphasizing the ongoing issue despite safety advancements.

In 2019, scientists found that balloons eaten by seabirds are more likely to kill them than other kinds of plastic yet they do not seem to have been earmarked in the same way as, for example, plastic straws.

A potent neurotoxin capable of causing lifelong damage to the lungs, brain, skin and other organs, mercury is strictly regulated worldwide. Children, in particular, can suffer severe developmental impairment when exposed. A trace element that occurs naturally in rocks such as limestone, as well as in coal and crude oil, mercury remains locked underground for millions of years, largely entering the ecological cycle through human activity.

Many human activities - from improper disposal of waste to the degradation of car tyres - release small plastic particles, which have infiltrated the atmosphere, oceans and other ecosystems. These include nanoplastics - particles measuring less than 1 micrometre across - and microplastics, which range from 1 micrometre to around 5 millimetres. They've entered our bodies and brains, and scientists are still working to understand their effects on people's health.

The household burning of plastic for heating and cooking is widespread in developing countries, suggests a global study that raises concerns about its health and environmental impacts. The research, published in the journal Nature Communications, surveyed more than 1,000 respondents across 26 countries. One in three people reported being aware of households burning plastic, while 16% said they had burned plastic themselves.

Coal power generation fell in China and India for the first time since the 1970s last year, in a historic moment that could bring a decline in global emissions, according to analysis. The simultaneous fall in coal-powered electricity in the world's biggest coal-consuming countries had not happened since 1973, according to analysts at the Centre for Research on Energy and Clean Air, and was driven by a record roll-out of clean energy projects.

One thing that stood out was the home environment. This was the largest contributor to children's daily particle pollution exposure more than school or commuting. This was mainly due to indoor sources such as wood burning and indoor smoking. Short peaks in particle pollution were linked to home cooking and secondhand tobacco smoke. Home heating with a fire or stove was linked to longer exposures. In some cases, these persisted overnight in children's bedrooms as fires remained lit or smouldering with poor ventilation.

The remaining question, though, was where all this methane was coming from in the first place. Throughout the pandemic, there was speculation that the surge might be caused by super-emitter events in the oil and gas sector, or perhaps a lack of maintenance on leaky infrastructure during lockdowns. But the new research suggests that the source of these emissions was not what many expected. The microbial surge

The conventional approach to evaluating the impact of air pollution is to focus on a single exposure during a fixed period of time. But evidence suggests that contaminants work together, magnifying the damage to people's lungs. Conventional studies fail to probe synergistic effects. They also ignore the cumulative effects of lifelong exposures to pollutants, known as the exposome. Researchers need to shift away from single-pollutant studies and towards those involving a broad range of exposures.