Environmentalists have said that during Tihar (Diwali), which is the festival of lights, there will be air and noise pollution in the environment.

He urged people to be careful as various chemical substances such as sulfur dioxide, nitrogen oxide, carbon monoxide and dust particles spread in the atmosphere and increase pollution when burning leaves.

Environmentalist Bhushan Tuladhar said that the burning of firewood should not be done as toxic gases like firewood will pollute the air and cause respiratory problems.

Most of the children are involved in making Patka during Diwali, they live near the Patka. This is having a negative impact on their health,' he said.

Climate change expert Manjit Dhakal emphasized that the concerned bodies should be more cautious and control the burning of the palm as the noise and smoke from the burning of the palm will increase the air pollution. 

'Recently, the rate of stroke in Nepal has decreased somewhat. The government of India has been urging the citizens to be cautious saying that more patakas will cause air pollution in India during Diwali,' he said.

Climate change expert Dhakal said that since Patka contains harmful chemicals, it pollutes the soil and water and disturbs the balance of the environment.

Public health experts have urged people to be cautious saying that the toxic smoke and gas coming out of the fire can cause allergies, burning eyes, itchy skin, asthma, liver, lungs, heart and respiratory problems. 

Public health experts have urged people to take precautions as the loud noise that comes out repeatedly can cause mental stress, insomnia, increase the risk of high blood pressure, and cause permanent damage to the ears. 

'Air Quality Index' has reported that pollution has increased in Delhi, India due to Diwali. According to the data till this afternoon, the overall air quality index (AQI) is 184. Now Delhi is listed as the third most polluted city in the world. 

Spokesperson of the Customs Department, Mukti Prasad Shrestha, said that since Nepal-India has an open border, patka was brought into Nepal illegally by evading customs. He said that because there is more shopping from India during the festival, people are entering Nepal illegally across the border.

Article 138 of Chapter 7 of the Criminal Code of 2074 on the offenses related to explosives provides that explosives should not be produced. It is said in the said provision, 'No one shall make, prepare or produce any kind of explosive substance without obtaining a license or even if he has obtained a license.'