Many Hefei citizens reported that they smelled a strange smell in the air. Is this strange smell poisonous?

Many Hefei residents reported that they smelled a strange smell in the air, which was actually the smell of heather and was not toxic. Now that summer is here, many flowers are in full bloom. Heather has a strange taste. In fact, it is mainly to attract insects to spread pollination, which is not only for the better growth of trees, but also for reproduction. When heather is in full bloom, it is a small white flower, which looks good from a distance and the fruit is red. Photinia is easy to cultivate and survive. It also has high medicinal value and has diuretic, sedative and antipyretic effects. Heather can absorb a lot of sulfur dioxide in the air and plant it on the roadside, which is particularly good for air purification. In recent years, with the development of social economy, the number of cars has been increasing, and air pollution can not be ignored. Automobile exhaust mainly contains carbon monoxide and nitrogen oxides. In order to reduce pollutants in the air, the government tries to plant trees on the roadside, on the one hand, it absorbs toxic substances in the air and purifies the air; On the other hand, it is to green the environment and build this beautiful city. In fact, there are many trees that can absorb harmful substances in the air. Maybe they are not as obvious as heather, but they also contribute to purifying the air. If trees are planted to purify the air, people will think heather smells bad. We can also choose other trees instead of heather, such as camphor tree, elm tree, willow tree, phoenix tree and ginkgo tree. These trees are easier to survive and to plant. Cinnamomum camphora and elm trees also have strong absorption capacity for sulfur dioxide. In the final analysis, we should protect our living environment and reduce the discharge of pollutants, otherwise one day, we will regret it and get hurt. During this period, the appearance of extreme weather also makes us feel panic and anxiety, which is the result of our environmental pollution. Protecting the environment is our responsibility and obligation.