A pregnant woman living in Choi Fook Estate has been found to have an elevated lead level in her blood.
Her blood sample was in a batch of 23 recently taken from residents and children affected by the lead in drinking water incident.
The 22 other samples are normal.
The Department of Health will arrange a lead exposure assessment for the woman, and the Hospital Authority will conduct a health evaluation and follow up on lead level.
People can call 2125 1122 for lead enquiries and to make blood test appointments.
As at 5pm today, the hotline had received 7,774 enquiries and arranged 5,245 blood tests.
