According to the EPA, the average indoor radon level is about 1.3 picocuries per liter (pCi/L). People should take action to lower radon levels in the home if the level is 4.0 pCi/L or higher. The EPA estimates that nearly 1 out of every 15 homes in the United States has elevated radon levels.Outdoors, radon generally disperses and does not reach high levels.adon is a colorless, odorless, radioactive gas. It forms naturally from the decay (breaking down) of radioactive elements, such as uranium, which are found in different amounts in soil and rock throughout the world.
Download. The Strait of Malacca as one of the most important geopolitical regions for the Peopleâs Republic of China. By: Guillermo Pineda The geographical hotspots of the world are all related to economic trade and global exchange of political interests. Places such as the Panama and Suez Canals have always been in the Western media.
The Portuguese under Vasco da Gama discovered a naval route to the Indian Ocean through the southern tip of Africa in 1497â98. Initially, the Portuguese were mainly active in Calicut, but the northern region of Gujarat was even more important for trade, and an essential intermediary in east-west trade.uring the Muslim period, in which the Muslims had dominated the trade across the Indian Ocean, the Gujaratis were bringing spices from the Moluccas as well as silk from China, in exchange for manufactured items such as textiles, and then selling them to the Egyptians and Arabs.