What is "dead zone"

n. 1 An area with no life. 2 (context ecology English) An area of the ocean where oxygen levels are too low to support life, especially as a result of pollution.

Red circles show the location and size of many dead zones.
Black dots show dead zones of unknown size.
The size and number of marine dead zones—areas where the deep water is so low in dissolved oxygen that sea creatures can't survive—have grown explosively in the past half-century. – NASA Earth Observatory

]]

Dead zones are hypoxic (low- oxygen) areas in the world's oceans and large lakes, caused by "excessive nutrient pollution from human activities coupled with other factors that deplete the oxygen required to support most marine life in bottom and near-bottom water. (NOAA)." In the 1970s oceanographers began noting increased instances of dead zones. These occur near inhabited coastlines, where aquatic life is most concentrated. (The vast middle portions of the oceans, which naturally have little life, are not considered "dead zones".)

In March 2004, when the recently established UN Environment Programme published its first Global Environment Outlook Year Book (GEO Year Book 2003), it reported 146 dead zones in the world's oceans where marine life could not be supported due to depleted oxygen levels. Some of these were as small as a square kilometre (0.4 mi²), but the largest dead zone covered 70,000 square kilometres (27,000 mi²). A 2008 study counted 405 dead zones worldwide.

Dead zone may refer to:

• Dead zone (cell phone), an area where cell phones cannot transmit to a nearby cell site
• Dead zone (ecology), low-oxygen areas in the world's oceans
• Dead zone (military), "blindspots" in a fortification's visual field which were relatively sheltered from defending fire

is a video game developed and published by Sunsoft. It was released only in Japan for the Famicom Disk System on November 20, 1986.

__NOTOC__

Dead Zone is an album by the Japanese noise musician Merzbow. The album was released in an eco-pack and is limited to 500 copies.

According to Masami Akita, this album was intended to be called Flax, inspired by its uses in a vegetarian diet. But, while the album was in recording stages, the 2011 Japanese earthquake struck and the 2011 Japanese nuclear accidents just after that. It then came to Akita's attention that it was going to be the 25th anniversary of the Chernobyl nuclear disaster and the theme of the album was changed to nuclear accidents and the connections between Fukushima and Chernobyl. The CD is dedicated to the worldwide anti-nuclear movement.

The album photos were taken at Prypiat, located in the Chernobyl dead zone.