In this experiment, PM2.5 and carbon monoxide levels in a room are tested before and after the lighting of a cigarette.
How serious is the pollution caused from smoking two cigarettes in a row?
Cigarette smoke and car exhaust go head to head in carbon monoxide and air pollution level comparisons.
A car is pulled into a closed garage. What will be the effects of air pollution?
What are the PM2.5 and carbon monoxide levels for a cigarette smoked inside a car?
Have you ever thought about growing and raising your own food? That is what C is doing. Let's hear his story.
At first, farmers in the new area didn't trust C's farming method. In order to convince them, C took the farmers on a tour of one of his farms.
While many consider the world Mother Earth, C has a different thought about this: As the land is our child, we must take good care of it.
A pefumer describes the features of his exquisite home.
In this video, we demonstrate how to properly wear, remove and dispose of a medical mask.
A Beijing Television segment on the types of masks to use during the COVID-19 epidemic.
In this Beijing Television segment on the types of masks to use during the COVID-19 epidemic, a guest explains the effectiveness of a disposable medical mask.
In this Beijing Television segment on the types of masks to use during the COVID-19 epidemic, a guest explains which masks should be used under which situations.
In this Beijing Television segment on the types of masks to use during the COVID-19 epidemic, a guest explains which masks are ineffective against COVID-19.
In this Beijing Television segment on the types of masks to use during the COVID-19 epidemic, a guest discusses what is dubbed "the selfish mask."
Can you imagine not using anything plastic related for a whole week? Doing so may actually be much harder than you think!
Ordering takeout while trying to eliminate one's use of plastic is no easy task.
Even though we are taught that we should separate plastics so that we can recycle them, in reality, not all plastics are recyclable.
It's very sad to see what we humans are doing to the Earth. Little things can accumulate and turn into big problems.
Some countries have tried to reduce waste production by reducing the number of trashcans. Perhaps this would be a more effective method if people did not just throw trash onto the street.
Although it's probably impossible to eliminate plastic use completely, we should try our best to contribute to helping save the environment.
Faced with such serious smog and haze, a reporter from Henan speaks with residents about PM 2.5 masks that are useful for blocking dust and smog. A doctor is also interviewed about the effectiveness of such masks and how residents can prevent diseases caused by smog in their daily lives.
How are hailstones formed? Watch and find out!