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Observatory releases concentration of radioactive iodine detected in air samples in Hong Kong (31 March 2011) |

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HKO e-Bulletin for the Marine Community Issue No.6 (March 2011) |

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Astronomical Photo Album: M16 The Eagle Nebula |

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HKO e-Bulletin on Educational Resources Issue No.29 (March 2011) |
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Redesigned Tropical Cyclone Webpages on the Hong Kong Observatory Website (29 March 2011) |
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The Observatory's Weibo service is very well received (28 March 2011) |
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Hong Kong Observatory open to public (27 March 2011) |
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Director's Collectanea on sale (25 March 2011) |
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The Observatory enhances its Website with Ultraviolet-A (UVA) Radiation Information (23 March 2011) |
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Italian-language Google Earth version of World Weather Information Service website launched (23 March 2011) |

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Observatory Director on Department's Recent Work and 2011 Work Programmes (23 March 2011) |
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The Observatory Delivers Weather News on Weibo (23 March 2011) |
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PDA version of HKO website gets a face-lift (23 March 2011) |
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Quick Earthquake Messages on Twitter Trial Version (23 March 2011) |
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HKObservatory@YouTube Hitting the 1 Million Mark (22 March 2011) |
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"MyObservatory" Hitting the 400 Million Mark (22 March 2011) |
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Radiation Monitoring Special Webpage for Nuclear Accident (18 March 2011) |

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Russian-language version of World Weather Information Service website launched (18 March 2011) |

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Will the radioactive materials from Japan's Fukushima Daiichi nuclear power plant reach Hong Kong? (18 March 2011 updated) |

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"Science in the Public Service" Campaign - Public Lectures (19 March 2011) |

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Hong Kong Observatory Open Day (26 - 27 March) |

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Will the radioactive materials from Japan's Fukushima Daiichi nuclear power plant reach Hong Kong? (17 March 2011 updated) |

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The Observatory launches the Sand and Dust Weather Information webpage (17 March 2011) |

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Real-time ambient gamma radiation levels in Hong Kong released by the Observatory (16 March 2011) |

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Will the radioactive materials from Japan's Fukushima Daiichi nuclear power plant reach Hong Kong? (16 March 2011 updated) |
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Backward Trajectory Map in February 2011 |

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The radiation level in Hong Kong is normal (15 March 2011) |

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World Meteorological Organization announced the service enhancement of Severe Weather Information Centre (15 March 2011) |

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Will the radioactive materials from Japan's Fukushima Daiichi nuclear power plant reach Hong Kong? (15 March 2011 updated) |

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Will the radioactive materials from Japan's Fukushima Daiichi nuclear power plant reach Hong Kong? (14 March 2011 updated) |

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Will the radioactive materials from Japan's Fukushima Daiichi nuclear power plant reach Hong Kong? (13 March 2011) |

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Will the radioactive materials from Japan's Fukushima Daiichi nuclear power plant reach Hong Kong? (12 March 2011) |

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Special Press Release on Tsunami (11 March 2011) |

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Launch of New Version 3.0 of "MyObservatory" for iPhone (10 March 2011) |

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Observatory's digital regional weather forecast extended to three days (9 March 2011) |

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A February mixed with cold and mild weather |

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More schools joining the "Community Weather Information Network" (1 March 2011) |