Director of nursing Lorna Wilkinson said Charlie, who was poisoned by the nerve agent in Amesbury last month, was released earlier today.
The couple became exposed to the deadly nerve agent after handling a contaminated bottle later found in Mr Rowley's home in Amesbury, near Salisbury.
He reiterated that the public should not pick up items such as syringes, needles, cosmetics or objects made of plastic, metal, or glass.
Officials believe that the nerve agent that sickened Rowley, 45, and killed his partner was the same that was used against ex-Russian spy Sergei Skripal and his daughter Yulia in March.
British Prime Minister Theresa May accused Russia of being behind the attack on the former spy and his daughter, and expelled 23 Russian diplomats in retaliation.
Ms Sturgess later died on 8 July and a murder inquiry has been launched.
She said the Public Health England body had advised that Rowley poses no risk to the public.
"I would also like to reassure everyone that, despite many people seeking advice following these incidents, there have only ever been a total of five people who have been exposed to this nerve agent and admitted to hospital for treatment".More news: 'I THOUGHT THE B---- WAS WHITE!': Roseanne Barr explains Valerie Jarrett tweet
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Wiltshire Police Chief Constable Kier Pritchard said police will work with local agencies to make sure Rowley gets the support he needs as he continues to recover.
Her sister Stephanie told the hearing she was present when doctors informed her of the decision to switch off her sibling's life support.
Ms Wilkinson attempted to assuage fears of wider contamination in Salisbury by reminding them that there has been a relatively low number of victims.
A still image taken from video footage recorded on 30 June 2018 and released to AFP on 5 July 2018 shows a man on a stretcher being put into an ambulance by medics and police outside a residential address in Amesbury, southern England, on 30 June 2018 where police reported a man and woman were found unconscious in circumstances that sparked a major incident after contact with what was later identified as the nerve agent Novichok.
Last week, it was revealed that investigators had identified, from CCTV footage, Russian nationals that were suspects in the poisoning of the Skripals.
The Organisation for the Prohibition of Chemical Weapons (OPCW) will analyse the substance before reporting back its conclusions.
The BBC has not been able to independently confirm the story.