What are the hazards of burning straw?

1, polluting the air environment and endangering human health.

When burning straw, the three pollution indexes of sulfur dioxide, nitrogen dioxide and inhalable particulate matter in the atmosphere all reached the peak, in which the concentration of sulfur dioxide was 1 times higher than usual, and the concentration of nitrogen dioxide and inhalable particulate matter was three times higher than usual, which was equivalent to the five-level daily average concentration.

When the concentration of inhalable particles reaches a certain level, it will cause great irritation to the parts containing mucous membranes such as eyes, nose and throat, ranging from coughing, chest tightness and tears, and may lead to bronchitis in severe cases.

2, cause a fire, threatening people's lives and property safety.

Straw burning can easily ignite the surrounding flammable materials, especially near the mountainous areas. Once a fire breaks out, the consequences will be unimaginable.

3, causing traffic accidents, affecting road traffic and aviation safety.

Because there are a lot of farmland on both sides of most expressways, the smoke formed by burning straw will reduce the visibility and visual range of the air and easily lead to traffic accidents.

4. Destroy the soil structure, resulting in the decline of farmland quality.

Burning straw makes the ground temperature rise sharply, which can directly burn beneficial microorganisms in the soil, affect the full absorption of soil nutrients by crops, directly affect the yield and quality of farmland crops and affect agricultural income.

5. The smoke and scorched earth formed by burning straw is the biggest damage to a city's environmental image.

Extended data:

Utilization of straw raw materials

1, artificial board

Using rice straw, wheat straw, cotton straw and other crop straws as main raw materials, after treatment, a dense and hard board core was formed under the condition of hot pressing, and then special tough cardboard coated with resin glue was covered on both sides of the board core, and then light board was made by hot pressing.

2. Lignin phenolic resin adhesive

Rice, corn, sweet sorghum and other crop straws were used as raw materials, and electrophilic addition reaction was carried out with formaldehyde under the catalysis of alkali, and hydroxymethyl was introduced into benzene ring. Through the design of molecular structure of lignin phenolic resin, the application of lignin phenolic resin adhesive in wood-based panels was realized.

3. Grass products

Using rice, corn and other crop straws as raw materials, developing grass products processing enterprises and making industrial packaging, straw sticks, straw mats, straw ropes, straw curtains and other grass products can not only purify the air, put an end to pollution, but also increase economic income and employment.

People's Network-Harm of Burning Straw