Īnxiety toward nuclear power is an important social issue. Previous studies have shown that YouTube can create a platform for and play a positive or negative role in risk communication. Younger generations in particular are being raised in a time of social media and are learning to acquire information from these media. YouTube (Alphabet Incorporated) has become the most popular video-sharing platform worldwide and is the second most visited website, with 2 billion monthly users. Social media can be defined as interactive communication media that have been fused into human lives worldwide. Almost 9 years after the nuclear disaster, environmental and food safety issues are again drawing worldwide attention. Fukushima City will host 6 softball games and 1 baseball game for the Tokyo Olympic games, and food from Fukushima Prefecture will be served. This disaster released massive amounts of radioactive material into the environment and resulted in public anxiety toward nuclear power and radiation worldwide. The FDNPP (location: 37° 25′ North, 141° 02' East) is located approximately 200 km northeast of Tokyo. The Great East Japan Earthquake (magnitude 9.0) and subsequent tsunami on March 11, 2011, caused an accident at the Fukushima Daiichi Nuclear Power Plant (FDNPP).
By using criteria for content and technical design, two evaluators scored videos and grouped them into the useful (score: 11-14), slightly useful (score: 6-10), and useless (score: 0-5) video categories. Parameters of the videos, including the number of subscribers, length, the number of days since the video was uploaded, region, video popularity (views, views/day, likes, likes/day, dislikes, dislikes/day, comments, comments/day), the tone of the videos, the top ten comments, affiliation, whether Japanese people participated in the video, whether the video recorder visited Fukushima, whether the video contained theoretical knowledge, and whether the video contained information about the recent situation in Fukushima, were recorded. In total, 111 videos met the inclusion criteria. Videos that were irrelevant, were non-English, had inappropriate words, were machine synthesized, and were <3 minutes long were excluded. The first 60 eligible videos in the relevance, upload date, view count, and rating categories were recorded.
We searched for the term “Fukushima nuclear disaster” on YouTube on November 2, 2019.
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