This study found that about 11.7% of the country`s population had lost their hearing due to noise pollution. According to the report, the noise level during the day was above 120 dB in Gabtoli, Arambagh Junction, Gulshan-2 Crossing, Gulistan Crossing, Mirpur 10 Crossing, Banglamotor, New Market, Mascot Plaza of Uttara, Jagannath University and other areas. Among the 70 points, the lowest noise level was measured at 99.6 dB during the day and 43.7 dB at night on Uttara-14 road-18. The highest noise level recorded at Farmgate was 130.2 dB during the day and the lowest was 65.7 dB at night. It has also been found that 500 to 1,000 vehicles in Dhaka honk their horns at the same time, even when stuck in traffic jams. If the ear is exposed to extremely loud noises (more than 100 dB) for an extended period of time, it can cause irreparable damage to our ear. These sounds can damage sensitive structures in the inner ear and cause noise-induced hearing loss (NIHL), which can occur immediately or take a long time to become visible. But the louder the sound, the shorter the time taken by NIHL. It can be temporary or permanent and it can affect one or both ears. In this case, victims usually cannot understand when talking to each other, especially on the phone or in a noisy environment. n NUISANCE: Noise pollution is one of the causes of inconvenience. Excessive noise pollution irritates people; They feel a kind of lack of naturalness and excitement that manifests itself in their behavior.

A nervous type of man, of course, is naturally more susceptible to such discomfort and discomfort. VARIOUS OTHER PHYSICAL OR MENTAL LOSSES: Exposure to loud sounds can lead to violent behavior. Constant noise nearby can also cause headaches; Make people tense and anxious and disrupt emotional balance. Noise pollution can distort the natural tempo of our speech. People may have difficulty speaking. In general, explosive noise generated by car traffic and aircraft tends to cause such problems. n CARDIOVASCULAR DISEASES: A noisy environment can be a major source of heart problems. A recent study shows that high loudness causes a dramatic increase in blood pressure because noise levels narrow the arteries.

It also increases the disruption of blood flow and the number of heartbeats per minute. The study also shows that the heart rate of people who live in a noisy environment is higher than that of people who live in a less noisy environment. These sudden abnormal changes in the blood increase the likelihood of cardiovascular disease in the long term. Workers in various occupations are exposed to more or less noise hazards every day, but workers in the ready-to-wear (RMG) industry are the biggest victims. Sustainable noise management is urgently needed to implement the fundamental concept of occupational health and safety in the workplace. The dangers of noise depend on the dose. The higher the noise dose received by a worker, the greater the risk to the employee`s hearing. A worker`s noise dose depends on the following three factors: n POOR COGNITIVE OUTCOME: Regular experience of loud noises over time significantly reduces the ability to read, learn and understand. Problem-solving skills and memory skills may also decrease due to frequent noise bombardment. Noise pollution can also increase the error rate that affects our productivity in the office. According to the World Health Organization (WHO), about 5.0% of the world`s population suffers from noise pollution.

The safety noise limit is 45 decibels (dB). Sound above 65 dB can cause heart disease, ulcers of more than 90 dB, hearing problems and changes in the nervous system, and more than 120 dB of pain in the ears and gradually destroy hearing. n HEARING LOSS: Exposure to noise can damage our hearing. Hearing damage due to noise pollution can be temporary or permanent. Long or repeated exposure to noise equal to or greater than 85 dB has harmful effects on the ear. n Duration: The length of time you are exposed to noise. OCCUPATIONAL HEALTH RISK: Occupational health risk has become one of the most important problems in the modern industrial workplace. A recent study shows that millions of workers around the world are exposed to noise levels every year that put their hearing at risk. Studies show that at least 45 areas of Dhaka city are extremely polluted by noise. According to a recent study, the average noise level is 80-110 dB in the best areas of Dhaka such as Farmgate, Karwan Bazar, Shahbagh, Gabtoli and Mohakhali Bus Terminal.

In our daily lives, cognitive tasks are often performed in the presence of irrelevant ambient noise. Research has shown that children who learn in a noisy environment tend to show relatively low cognitive function. In healthy adults, ambient noise affects many areas of cognition. n SLEEP DISORDERS: Both developed and developing countries are becoming progressively noisier. But sleep is an essential part of human life, development and well-being. Sleep disturbances due to exposure to high decibel noise can affect our overall well-being and, as a result, noise pollution has been described as a “modern invisible scourge”. Perhaps the most important fact about noise pollution in Bangladesh is our retroactive rules and regulations, poor monitoring system, and poor implementation policy. Therefore, a well-thought-out noise protection policy is the order of the day. It is also high time for the government to take significant steps to update existing noise legislation in 2006.

Here in Bangladesh, the 2006 noise pollution control rules state that the acceptable noise limit in quiet areas is 50 dB during the day and 40 dB at night. in residential areas 55 dB for day and 45 dB for night; in mixed areas, 60 dB for day and 50 dB for night; in industrial areas 70 dB for day and 60 dB for night; and in industrial areas 75 dB for day and 70 dB for night. The guidelines stipulate that exceeding the maximum sound level in certain areas is punishable. n GETTING TIRED AND EXHAUSTED: Noise pollution makes people tired and exhausted. People generally practice different types of professions. But those who are employed in various jobs suffer from burnout or apathy at work, and such trends gradually weigh on their performance. The WHO has described noise pollution as an underestimated threat that can cause hearing loss, cardiovascular problems, cognitive impairment, stress and depression. Noise pollution can affect people in several ways, some of which are listed below: Bangladesh on its way to becoming a global freelance hub Noise can interrupt healthy sleep from a good night`s sleep. When this happens, the person feels extremely upset and uncomfortable.

Those who cannot enjoy a healthy sleep show a sharp drop in their energy levels, which often leads to extreme fatigue. This can significantly reduce a person`s ability to work effectively. Rana Dutta | Published: August 12, 2018 21:34:12 | Updated: August 31, 2018 21:35:27 N Intensity/volume: According to the International Labour Organization (ILO), 60 dB is for normal conversations. A maximum of 85 dB is recommended for eight hours per working day. Does digital financial inclusion reduce the income gap between urban and rural areas in Bangladesh? n COMMUNICATION PROBLEMS: The noise can be external or internal, interrupting the communication process at any time. But verbal communication is absolutely necessary for communication in the workplace. A noisy environment that generates more than 50-60 dB simply does not allow two people to communicate properly.