What Is Non-Emergency Transportation?

Transportation noise refers to the noise that interferes with the surrounding living environment during the operation of transportation vehicles such as motor vehicles, railway locomotives, motor ships, and aircraft. Motor vehicles include automobiles and motorcycles.

Traffic noise

Right!

Traffic noise refers to

The prevention and control of transportation noise pollution involves the following aspects:

China Net In-depth Investigation of Noise-proof Earplugs: Five Tips to Choose Good Noise-proof Sleep Earphones ^[1]

Recently, a creative advertising video that was circulated on Weibo has made many netizens aware of the brand of zero-ear earbuds. At the same time, many people who suffer from noise have been concerned about the category of sound-insulated earbuds. Through a week's in-depth investigation of the new product category of earplugs, the reporter summarized the following experience to help consumers choose the right product.

Soundproof earbuds (anti-noise earbuds) are the earliest products from abroad. Currently in Europe and the United States, every household is equipped with daily-use products, which are sold by drugstores. The mainstream are sponge earplugs made of slow rebound materials and processes, and these types of earplugs are also divided into two categories: one is labor insurance products, which are hearing aids for workers in the production workshop; the other is specifically for the sleep market in the civilian market. earplug.

In the past ten years, the mainstream brands of domestic earplugs are some labor insurance brands, such as 3M earplugs in the United States and Bagu earplugs in France. Since earplugs first entered the country through factory channels, the Chinese people s understanding of earplugs began with labor insurance products, so they are naturally used for general life or sleep. Because this type of product needs to be replaced every day, the demand is very large, but the factory requires compression costs, so the quality is generally rough. They are suitable for short-term use, and some earplugs have a hard texture, which can cause damage to the ear canal for long-term use. In addition, long-term wearing of these earplugs is also easy to breed bacteria, which may cause problems such as ear canal swelling or inflammation and allergies. Therefore, this type of product cannot meet the daily sleep needs of civilians.

The reporter found a lot of relevant news in the database, most of which are about the noise of the dormitory on campus, or the serious noise problem in the residential area, which caused the sound insulation earplugs to be sold well, and the safety of earplugs is still controversial.

Until recent years, civil earplugs have only started slightly in China. According to a reporter's survey in the market, Zero-Ten Anti-Noise Guard is the largest noise-proof earplug in the civilian market share, accounting for about 80%, and it is also the only one in large-scale chain pharmacies (Zhonglian, Wan Ze, etc.) for the sale of sound insulation earplugs nationwide. Ms. Wang, a clerk at Zhonglian Pharmacy in Caiwuwei, Shenzhen, introduced that the earphones are more inquiries in the pharmacy, because the village in the city is noisier at night, and it was just a few days ago when the ads were hot and the college entrance examination As a result, many customers go directly to the pharmacy for consultation, and most of the people who have bought it will go back and buy again. The sales of this single product are also increasing month by month. "After all, the zero-ear earbuds do a good job in terms of comfort, sound insulation and durability, and they are sold by regular pharmacies. They have a complete quality inspection report, and customers feel that they have more protection than buying online."

On the other hand, with the explosive growth of the online shopping industry in recent years, the influence and popularity of various rare demand products have greatly increased. Civil earplugs are one of them. Taobao Crown seller Mr. Li told reporters that the customer s awareness of civilian earplugs has improved a lot in the past two years. Sales of labor insurance products like 3M and Bacou have gradually been replaced by civilian earplugs similar to Zero Listen. , And more and more brands. At the same time, he said that the sales volume of Taobao's entire category of sound insulation earplugs has doubled every year, and now has reached nearly 100,000 sales per day. It can be seen that domestic demand for soundproof earplugs is still very strong.

For the identification of civilian earplugs, the reporter interviewed dozens of senior industry experts, sellers and users who have used earplugs for a long time. The most important indicators are summarized as follows:

1. Anti-noise performance: The high-density earplugs do not have good anti-noise performance. The most important index is the material and formula used.

2. Softness: It determines the comfort of wearing earplugs for a long time. Generally speaking, this index is contradictory to the anti-noise performance, but professional sleep earplugs should combine the two indicators of softness and anti-noise.

3. Durability: The life of the earbuds, most of the labor insurance type earbuds are disposable products, while the sleep earbuds allow long-term safe use;

4. Safety indicators: if it has been tested by a legal inspection agency, whether it is sold in regular channels, whether it is a legally sold domestic product, and how antibacterial performance is;

5. Earplug shape: determines the fit of the earplug to the inner wall of the ear canal, and even the sound insulation effect and comfort. Because some brands of earplugs are foreign products, their shape and size may not be suitable for Chinese people.

In addition, the slow rebound speed of the earbuds actually only determines whether the earbuds are easy to wear into the ear. This indicator is aimed at customers who use earbuds for the first time. People with long-term earplugs are generally more familiar with the wearing method, and the slow rebound speed generally does not affect their wearing.