The National Trust for Scotland (NTS) has objected to the Scottish Government’s plan to relax the rules on lead shot at this summer’s Commonwealth Games.

The site for the clayshooting events includes wetlands and a nature reserve designated as a Site of Special Scientific Interest, where lead shot would normally be banned. But the sport’s governing body, the International Shooting Sport Federation, insists that lead be used because non-toxic alternatives behave differently and could adversely affect the athletes’ performances.

The Scottish Government plans to minimise the impact to the environment by using a permeable membrane that will catch the shot but allow water and air through. The NTS says it is not satisfied that enough is known about breeding and fledging birds in the area, nor the risks of birds ingesting the pellets. It is also concerned that the habitat beneath the membrane will not be restored after the Games has finished.