3 . Just when you thought you were taking care of your health by eating enough fruit and vegetables every day, new research has come out revealing that you might be swallowing microplastic particles (颗粒) along with all those vitamins, minerals, and fiber. A groundbreaking study published in the journal Environmental Research has found that fruits and vegetables absorb microplastic particles from the soil and move them through vegetal tissues, where they remain until eaten by hungry diners, thus getting transferred to human bodies.

The researchers, who are from the University of Catania in Italy, as well as Sousse and Monastir universities in Tunisia, analyzed a variety of common fruits and vegetables —carrots, lettuce, broccoli, potatoes, apples, and pears. These were chosen for the fact that they are frequently consumed, usually one per day, which allowed the researchers to better assess the dietary intakes of MPs (microplastic particles) and NPs (nano-plastics). The samples were purchased from different sources in the city of Catania, including a small fruit vendor and a supermarket.

The researchers found that apples, followed by pears, were the most polluted fruit samples, and carrots were the most polluted vegetable. In the study’s discussion section, the authors wrote, “We can assume that the fruits contain more MPs not only because of the very high vascularization (血管化) of the fruit pulp (果肉) but also due to the greater size and complexity of the root system and age of the tree (several years) compared to the vegetables (60-75 days for the carrot).”

This study is important because it's the first to detect microplastics in fruits and vegetables. They have been found in other sources before, such as sea salt, beer, water (bottled, in particular), shellfish, sugar, soil, and even air, but never inside fresh produce. It’s an alarming discovery that raises yet another red flag about microplastic pollution in the natural environment.

It’s an area that will likely see a lot more attention in coming years, with the study authors calling for further research into the question of microplastic and whether it harms the health of both plants and humans.

5 . Sleeping in a noisy room isn’t only distracting (使人分心的), and it can also harm your health. Although researchers have known for decades that long­term loud noises can harm us, it’s only recently become recognized as a widespread problem.

In a new review of previously published studies, researchers from Germany and Denmark took a look at the ways in which noises, such as an airplane passing by or jackhammer digging in the ground, can affect our hearts. Perhaps the most obvious impact of a loud sound while you are sleeping is that it can wake you up. But, even if you don't remember hearing the noise or you don’t physically get out of bed, it can disrupt you in ways you may not realize.

“Noise is not just causing annoyance, but it actually makes us sick,” said Dr. Thomas Münzel, a professor at Johannes Gutenberg University Mainz. “Regardless of where the sound is coming from, if it gets louder than 60 decibels (分贝),it can increase the risk of heart disease.”

When our body hears these noises, it reacts with a stress reaction. In this case, these sudden and unexpected noises cause hormones(荷尔蒙) to speed up and eventually damage the heart. Although the chance that a single noise will affect you is unlikely, it’s the continuous exposure (接触) to the sound that can finally affect you.

“But our heart health isn’t the only cause for concern. Long-term noise may also raise the risk of type 2 diabetes (糖尿病), depression, and anxiety disorders,” he warns. In the future, Münzel plans to examine how noises from cars, planes, and other vehicles affect the brain. But despite the amount or the depth of research he conducts, it’ll take the help of politicians to improve the effect of noise on our health.

“Politicians have to take into account, in particular, the new findings,” Münzel said, “As for aircraft noise and airports, it is important to make new laws and set new lower noise limits that protect people living close by the airport instead of the owners of the airport.”

7 . Microplastic pollution is increasing dramatically around the globe, according to a study of airborne (空气传播的) plastic particles (粒子).

People are already known to breathe, drink and eat microplastics, and research suggests that pollution levels will continue to rise rapidly. The researchers said that breathing in these particles can damage lung tissue and lead to serious diseases.

Professor Natalie Mahowald, at Cornell University in the US and part of the research team, said, “But maybe we could solve this before it becomes a huge problem, if we manage our plastics better, before they accumulate (积聚) in the environment and move around quickly everywhere.”

The research, published in the journal Proceedings of the National Academy of Sciences, examined airborne microplastics, which have been far less studied than plastic in oceans and rivers.

The team gathered more than 300 samples of airborne microplastics from 11 sites across the western US. These were the basis for atmospheric modeling that estimated (估计) the contribution from different sources, and was the first such study to do so.

They found that roads were the main factor in the western US, linked to about 85 percent of the microplastics in the air. These are likely to include particles from tires on vehicles, and plastics from litter that had been broken down.

The researchers enlarged their modeling work to a global level and this suggested that while roads are also likely to be the main driver of airborne plastics in Europe, South America and Australia, plastic particles blown up from fields may be a much bigger factor in Africa and Asia.

Professor Andreas Stohl of the University of Vienna’s Faculty of Earth Sciences, and not part of the study team, said, “The study confirms the global-scale nature of microplastic transport in the atmosphere and does a good job in highlighting highly relevant and concerning possibilities, but more measurement data is needed to get a better idea of the sources.”

9 . Kenya has been at the forefront (前沿) of the global war on plastic since the government banned single-use plastics in protected areas in June 2020. Unfortunately, the preventive measures have barely received attention. Hundreds of tons of industrial and consumer polymer waste continue to get dumped into landfills daily. However, if 29-year-old Nzambi Matee has her way, the unsightly plastic heaps will soon be transformed into colorful bricks.

The materials engineer’s seeking to find a practical solution to control plastic pollution began in 2017. She quit her job and set up a small lab in her mother’s backyard. It took her nine months to produce the first brick and even longer to convince a partner to help build the machinery to make them. But the determined eco-entrepreneur was confident in her idea and did not give up.

She says, “I wanted to use my education to handle plastic waste pollution. But I was very clear that the solution had to be practical, sustainable, and affordable. The best way to do this was by channeling the waste into the construction space and finding the most efficient and affordable material to build homes.” Her company produces over 1,500 bricks a day. The pavers are made using a mix of plastic products that cannot be reprocessed or recycled.

The collected plastic is mixed with sand, heated at very high temperatures, and compressed (压缩) into bricks that vary in color and thickness. The resulting product is stronger, lighter, and about 30 percent cheaper than concrete bricks. More importantly, it helps repurpose the lowest quality of plastic. “There is that waste they cannot process anymore; they cannot recycle. That is what we get.” Matee says.

Matee is not nearly done. Her dream is to reduce the mountain of trash to just a hill by increasing production and expanding her offerings. She says, “The more we recycle the plastic, the more we produce affordable housing, the more we created more employment for the youth.”

10 . A Plastic Ocean is a film to make you think.Think,and then act.We need to take action on our dependence on plastic.We’ve been producing plastic in huge quantities.Drinking bottles,shopping bags and even clothes are made with plastic.    1     What happens to all the rest?This is the question the film A Plastic Ocean answers.

The film begins as a journey to film the largest animal on the planet,the blue whale.But during the journey the filmmakers make the shocking discovery of a huge,thick layer of plastic floating in the Indian Ocean.    2     In total,they visited 20 locations around the world during the four years to make the film.

In the film there are beautiful shots of the seas and marine life.    3     We see how marine species are being killed by all the plastic we are dumping in the ocean.The message about our use of plastic is painfully obvious.

    4     In the second half,the filmmakers look at what we can do to deal with the problem.

They present short-term and long-term solutions.These include avoiding plastic containers and recycling as much as you can.The filmmakers also stress the need for governments to work more on recycling programmes.

We make a shocking amount of plastic.Over 300 million tons of plastic are produced every year,and at least 8 million of those are dumped into the oceans.The results are disastrous,but it isn’t too late to change.    5