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American football took to Wembley Stadium last weekend, but it was a game back on home soil that made all the real noise.

The Kansas City Chiefs broke the Guinness World Record for the loudest crowd cheer at a sports stadium this month, generating a noise of 137.5 dB. 

The crowd at Arrowhead Stadium exceeded the previous record of 136.6 dB achieved by Seattle Seahawks.

Both of these games have achieved noise louder than standing near to a military jet take off, deemed a safe level of noise for less than one second.

"We were really trying hard to get our calls to each other on defence. It was really tough," Chiefs safety Eric Berry said.

"I had to actually go up to some of my teammates and yell in their ear what the calls were!”

In 2011, a Turkish derby football match between Galatasaray and Fenerbahce recorded 131 dB, a Guinness World Record at the time.

When a survey of Premier League games was taken two seasons ago, five grounds were found to carry “dangerous” levels of noise: Anfield (97dB), Old Trafford (94dB), Villa Park (89dB), Goodison Park (86dB) and, more surprisingly, Blackpool’s Bloomfield Road (85db).

At Arrowhead Stadium, 3M provided free earplugs to the crowd, and encouraged to download their OSHA Hearing Conservation Mobile App.

3Ms handy app provides hearing protection information and allows users to perform preliminary assessments of sound levels in any environment. Nicole Vars McCullough, 3M’s global technical services manager said:

“We want to bring health and safety information to the palm of our customers’ hands.

“Our goal is to help simplify health and safety professional’s decisions around hearing protection—and with all the things a mobile app can do for them—we’re a step closer to doing just that.”