 The third attempt of poisoning Litvinenko took place at around 5 pm of 1 November in the Millennium Hotel in Grosvenor Square. The bus he travelled in to the hotel had no signs of radioactivity – but large amounts had been detected at the hotel. Polonium was subsequently found in a fourth-floor room and in a cup in the Pine Bar at the hotel. After the Millennium bar, Litvinenko stopped at the office of Boris Berezovsky. He used a fax machine, where the radioactivity was found later. At 6 pm Akhmed Zakayev picked Litvinenko up and brought him home to Muswell Hill. The amount of radioactivity left by Litvinenko in the car was so significant, the car was rendered unusable. Everything that he touched at home during the next three days was contaminated. His family was unable to return to the house even six months later. His wife was tested positive for ingesting polonium but did not leave a secondary trail behind her. This suggested that anyone who left a trail could not have picked up the polonium from Litvinenko (possibly, including Lugovoy and Kovtun). The patterns and levels of radioactivity they left behind suggested that Litvinenko ingested polonium, whereas Lugovoy and Kovtun handled it directly. The human body dilutes polonium before excreting it in sweat, which results in a reduced radioactivity level.There were also traces of Po-210 found at the Hey Jo / Abracadabra bar, Dar Marrakesh restaurant, and Lambeth-Mercedes taxis.
