Formula 1 has a “contingency plan” as poor air quality threatens this weekend’s Singapore Grand Prix.
A dense haze has descended on the city following forest fires in neighbouring Indonesia.
It has seen air pollution levels fall to a three-year low, prompting Singapore’s National Environment Agency to warn people to “reduce prolonged or strenuous outdoor physical exertion”.
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According to officials, the air quality situation is “highly interchangeable”, meaning it is “not possible to reliably predict” the Pollutant Standards Index (PSI) for the weekend.
However, the situation will be monitored “closely” with the Grand Prix weekend scheduled to go ahead as planned.
“The Singapore race organisers have covered the issue of air quality in the contingency plan for this year’s Grand Prix alongside stakeholders, government bodies and the Formula 1 community,” a spokesperson said.
“Race organisers have taken measures to reduce the impact of the haze for the race weekend.
“They have put in place a number of measures, including public information at the circuit.”
The race itself is considered the most demanding on the F1 calendar, because of the humidity and the race length, which almost certainly runs to two hours every year.
The form guide for the event remains up in the air, despite Mercedes looking to claim a fourth consecutive win at the Marina Bay Street Circuit.
Championship leader Lewis Hamilton has won the last two races in Singapore, and currently holds a 63-point lead over teammate Valtteri Bottas.
Red Bull’s strengths are again expected to shine through, though it remains unclear whether Ferrari has closed the gap despite Charles Leclerc’s wins in Belgium and Italy.
Mercedes boss Toto Wolff believes his team is still the one to beat this weekend.
“For a long time, Singapore used to be one of our weakest tracks, but we’ve made some inroads into that and performed well last year,” Wolff said.
“However, there are no home runs at a track like Singapore … we take absolutely nothing for granted in our approach to the weekend.
“We are looking forward to a tough battle.”