Just under a third of mothers have not spoken to their daughters about breast cancer or explained how to spot the symptoms, data has shown.
Beauty company Avon found almost 31% have never spoken with their daughters about breast cancer.
The five most common signs of breast cancer are:
- A lump
- A change to skin texture
- A rash or crusting
- A change in appearance of the nipple
- Nipple discharge
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The Metropolitan Police Federation, which set up the official JustGiving site, said it felt a "suitable amount" had been collected.
There is no evidence the Westminster attacker Khalid Masood was associated with so-called Islamic State or al Qaeda, the Met Police said.
Janet Ajao said in a statement: "I do not condone his actions nor support the beliefs he held that led to him committing this atrocity."