One Direction and howling crowd sprinkled lydgrensene at Ullevaal concert. – Kjendis.no

(Dagbladet): It did not take long before ungpikeidolene in the Irish-British boyband One Direction group had begun to sing, before the crowd screamed their lungs.

It is two years since the last time the world’s biggest boyband was visiting Norway, and tonight was the waiting time over. Dagbladet’s reporter on the spot could earlier in the evening to announce that Liam Payne, Harry Styles, Louis Tomlinson and Niall Horan arrived Ullevaal Stadium just before at 18.

Responsible for police efforts during the concert, police superintendent Lars Fredrik NJØS, told NTB before the concert that 80 percent of those who come are girls scream mode.

Dagbladet met one of the guys who were going to a concert, 12 year old Mathias Holm Tutvedt.

– I’ll be screaming when they go on, he said to Dagbladet before the concert.

– Temporary hearing loss

Dagbladet photographer at the site measured about 100 decibels when the concert started, and the volume increased to 103 when the noise was initiated – a doubling in power according to senior researcher at Sintef, Truls Gjestland.

He has several years shuttering of noise, and says that the average level at a concert is recommended including the Directorate of Health and the World Health Organization to remain at 100 decibels.

– 103 decibels. When we are talking about quite high levels. We distinguish between maximum levels and average levels, but there is at this level should not go more than four such concerts a year. Then you’ve got your årsdosen. Seven and a half minutes is a daily dose, says Gjestland Dagbladet.

Over seven and a half minutes in 103 decibels increases according to him the risk of hearing damage. Gjestland emphasizes that there is an immediate danger of exposing themselves to a concert of a One Direction holds today.

– We can also say for sure that many of those who have Been to a concert tonight is going to have balls and ringing in the ears for a while afterwards – also tomorrow. It is a temporary hearing loss. For most it goes over, but if you continue to expose yourself to such high noise levels will ultimately do not go overboard, says researcher noise.

Gjestland compares noise with the sound of drilling into concrete.

– As a jet

Secretary General of the Norwegian Association against noise, Ulf Winther, tells Dagbladet that warning lights will come first at 130 decibels.

– The sound level here can be compared with the sound of a passenger jet taking off at about 250 meters distance, he said.

Winther emphasizes that although the volume herein referred to, is it is always important to wear earplugs at concerts.

– There should always be a part of concert equipment.

Left band

boyband One Direction has melted many maiden hearts since it was formed five boys under X Factor in 2010. They came third in the competition.

In March, the shockwaves of fans as one member, Zayn Malik, decided to leave the group.

– My Time in One Direction has been more than I could ever imagined. But after five years, I feel that it is time to leave the band. I would like to apologize to the fans if they feel disappointed, but I have to do what feels right, said Malik when the news was announced.

The concert at Ullevaal Stadium in Oslo on Friday evening is part of their ongoing tour “On The Road Again.”