Asia Pacific

Conditions at Fukushima Plant Improve, but Return Home Will Take Years

In the United States, the average person gets six millisieverts of radiation a year. Around the Fukushima plant, officials evacuated areas where people would have gotten an estimated 20 millisieverts in the year after the accident. One area about twice the size of Manhattan was predicted to have a level of 100 millisieverts in the first year. The most contaminated parts of this area will be uninhabitable for at least three decades, experts say, though steps like removing soil could shorten that time.

Unit 3

Unit 1

400

350

300

250

200

150

100¡ C

50

DEC.

APRIL

Unit 2

helped prevent radiation from spreading further west to Aizu Region, a study found.

The mountains

Reactor temperatures have fallen. Tepco, the plant’s operator, expects to reach “cold shutdown” by year’s end. But decommissioning the plant could take 30 years.

Inside the Plant

HAMA-DORI

REGION

NAKA-DORI

REGION

AIZU REGION

Aizu Wakamatsu

126,000

Koriyama

339,000

Nihonmatsu

Iwaki

342,000

Okuma

Fukushima

293,000

Tsushima

Iitate

Lake

Inawashiro

Fukushima

Daiichi

NEW

JERSEY

STATEN

ISLAND

MANHATTAN

NEW

YORK

Approximate dimensions of the evacuation zone.

Area comparison

400 or more

100

1

20

Evacuation zone

Millisieverts per year

Densely populated areas

(Pre-tsunami population counts

shown for major cities)

Tepco/Reuters

Most evacuees now live in temporary housing and rented apartments. There are about 40,000 of these units in Fukushima Prefecture. Nearly half of the people who lived in the most affected towns were 50 or older.

Displaced

In a survey of residents of Okuma, about 56 percent of the displaced people who had full-time jobs before the disaster were able to maintain full-time employment.

Employment

About 88,000 residents lived in the evacuation zone. By comparison, the area evacuated after the Chernobyl accident was nearly four times larger, and some 300,000 people were displaced in the years after that accident.

Evacuation Zone

Reactor 1

Radiation Exposure

Reactor Temperatures

Tepco finished covering Reactor 1 with polyester panels in October, and has installed a cooling system.

According to Tepco, temperatures in the reactors have fallen below 100 degrees Celsius, one step toward a stable state known as “cold shutdown.”

 

OCT. 14

MAY 22

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