What kind of workplace hazards should my employer be paying particular attention to if I am pregnant?

This depends on the kind of work you do, but things to look out for include: 

• exposure to lead, and certain other chemicals such as drugs and pesticides; 
• working with ionising radiation; 
• lifting and other physical work; 
• exposure to infections; 
• exposure to cigarette smoke; 
• slips; 
• stress; 
• standing up for long periods; 
• heat; 
• inadequate facilities, including inadequate toilet facilities; 
• excessive working hours; 
• lone working; 
• work at heights; 
• travelling; 
• bad smells which may make morning sickness worse; 
• violence, for example if you work with members of the public; and 
• exposure to vibration, such as riding in off-road vehicles.