Question based on the nuclear reactors in Brazil and what would happen to Colombia?

okay, so i have to write a story for my english class, and i just have one question. if the nuclear reactors in Brazil exploded, how long would it take the radiation to get to colombia? cheers guys, it's a great help.

What is a VPN?

VPN is (Virtual Private Network) were first used by companies to enable their employees to securely access internal systems such as email remotely (e.g. from home or while on business trips). Today they are increasingly being used for personal use by individuals to protect their privacy while online in public places (e.g. when using the wi-fi connection in a cafe) or in a country where the internet is censored / blocked (e.g. China, Saudi Arabia��).