2077 Bq/Kg of Radioactive Cesium from Dried Shiitake "Made in Japan"

Sure. Iwate Prefecture is Japan alright. Since the company who packaged the dried shiitake claims it has mixed shiitake harvested in different parts of Japan (never mind that they did say the shiitake are mostly from Iwate Prefecture), the label can claim "made in Japan".

The photo is from the press release from Yokohama City. (Click to enlarge.)

From Sankei Shinbun Kanto local version (2/9/2012):

セシウム基準値４倍超え乾燥シイタケ、横浜のスーパーで７袋販売　

7 packets of dried shiitake mushrooms with radioactive cesium 4 times the provisional safety standard sold in Yokohama supermarket

横浜市は９日、港北区内のスーパーで販売されていた袋入り乾燥シイタケから、食品衛生法の定める暫定基準値１キロ当たり５００ベクレルの４倍を超える同２０７７ベクレルの放射性セシウムを検出したと発表した。すでに７袋が販売されており、市は出荷した加工業者のある静岡県に通報、販売したスーパーに回収を指示した。

Yokohama City announced on February 9 that 2,077 becquerels/kg of radioactive cesium was detected from dried mushrooms sold at a supermarket in Kohoku-ku in the city. The provisional safety limit is 500 becquerels/kg. 7 packets have already been sold. The city notified Shizuoka Prefecture where the packaging company is located, and ordered the supermarket to recall the packets.

　独自に調査した市民からの通報を受け市が９日に検査した。高濃度のセシウムが検出されたのはスーパーチェーン「ビッグヨーサン」の綱島樽町店が販売していた賞味期限が来年１月１０日の乾燥シイタケの袋詰め「小粒どんこ」。静岡県藤枝市の「大塚フード」が８０グラムずつ袋詰めして出荷した同スーパーの専売品。加工業者によると、乾燥シイタケの産地は主に岩手県という。

After being notified by a citizen who measured the radioactivity [of this dried shiitake] on his own, the city conducted its testing on February 9. The Tsunashima-Tarumachi store of a supermarket chain "Big Yosun" sold these mushrooms with effective date of 1/10/2013. Otsuka Food located in Fujieda City in Shizuoka Prefecture packaged the mushrooms in 80 gram packets, which was sold exclusively at the supermarket chain. According to the packaging company, the mushrooms are mostly from Iwate Prefecture.

　スーパーによると、綱島樽町店では２０袋を入荷し、うち７袋を販売。ほか２店でも店頭に並んだが、購入者はいないという。

According to the supermarket chain, their Tsunashima-Tarumachi store had purchased 20 packets, and sold 7 packets. 2 other stores also had the packets but none of them have been sold, according to the chain.

市によると、この乾燥シイタケをそのまま８０グラム食べた場合の人体への被曝（ひばく）線量は、最も大きい０歳で０・００３８３３ミリシーベルト。１３歳以上では０・００２５７２４ミリシーベルトと推計され、水で戻した場合の放射性セシウム濃度は、おおむね１０分の１になるとみられる。

According to the city, if one eats 80 grams of this dried shiitake the internal radiation for 0-year-old would be 0.003833 millisievert, and 0.0025724 millisievert for people 13 years old and older. It is considered that if you re-hydrate the shiitake, the density of radioactive cesium would drop to about one-tenth.

　厚生労働省が来年度の施行に向けてまとめた食品中の放射性物質に関する新たな基準値案では、食品による内部被曝線量の限度を年間１ミリシーベルト以下としている。

According to the new safety standard guidelines that the Ministry of Health and Labour has compiled to take effect in the new fiscal year [starting on April Fool's Day], the internal radiation exposure limit is 1 millisievert per year or less.

As if 80 grams of dried shiitake from Iwate with radioactive cesium is all you eat the whole year.

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