(UPDATE: Event organisers say the PSI reading will be taken just before the start of each session. If it exceeds 200, the session will be cancelled. There are four sessions over the two days - two morning heats (10am) and two evening finals (6pm). In the event of cancellation, ticket-holders of the affected sessions will be refunded.)
SINGAPORE - The Singapore leg of the Fina Swimming World Cup, scheduled to take place this weekend at the OCBC Aquatic Centre, will be cancelled if the Pollutant Standards Index (PSI) exceeds 200.
At Friday's pre-race press conference held at the Kallang Wave Mall atrium, Fina executive director Cornel Marculescu said the measures are in place as the health of swimmers and spectators are of paramount importance.
He added that this is in accordance with the National Environment Agency's health advisory, which recommends that prolonged or strenuous outdoor physical exertions be avoided when the PSI is between 201 and 300.
The three-hour PSI reading will be taken at 10am, an hour before the morning heats. If it exceeds 200, the day's swims will be cancelled.
Singapore is the fifth stop in the eight-leg World Cup series, and is also the third and final stop of Cluster Two, which includes the Hong Kong and Beijing legs. The top six swimmers of each cluster get prize money for their finishes.
In addition, the women's 800m and men's 1,500m freestyle races have been scrapped. The top three will be determined by the swimmers' best times from the Hong Kong and Beijing races.
Events with 25 or less competitors will be held in a timed finals format - each swimmer will swim once and the top three finishes will win a medal.
Hungary's world champion Katinka Hosszu said: "Obviously it's unfortunate but we can't do anything about it. We just have to make the best of the situation. If we can get up to race in the finals I think it would be great."