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Question by Miss Cheng Li Hui: To ask the Minister for the Environment and Water
Resources (a) what are the numbers and locations of Smart Gravitraps that are deployed as
part of a trial since late 2018; (b) what are the data collected by the traps and whether they
are useful in improving dengue control in Singapore; and (c) whether such traps will be
introduced nationwide on a permanent basis.
Answer by Minister Masagos Zulkifli:
The National Environment Agency (NEA), together with local start-up Orinno
Technology Pte Ltd, has developed a “Smart Gravitrap” prototype. The Smart Gravitrap is
similar to a standard Gravitrap, and is able to attract and trap female Aedes mosquitos looking
for sites to lay their eggs. In addition, the Smart Gravitrap captures the mosquito’s flight
signature to identify its species and gender, and transmits this information to NEA. This allows
NEA officers to conduct data collection and analysis remotely, reducing the reliance on
manpower to manually collect data from Gravitraps.
2. NEA is currently preparing for a six-month pilot trial of the Smart Gravitrap prototypes
at two construction sites in the second half of 2019. The data collected from this trial will help
to further guide the design of the Smart Gravitrap, as it moves into the product development
phase. NEA will review the results of the trial before deciding on the operational plans for
Last updated: 08 May 2019
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