The latest air quality and environmental tests at the Lester Vaughan School have revealed that the air quality and environmental health of the campus are not at risk.But parents, who are set to virtually meet with the school management on Thursday evening, are questioning the study’s validity. They told Barbados TODAY that environmental issues at the Cane Garden, St Thomas school persisted despite the testing company having conducted previous tests years ago. They claimed that for the past 16 years, staff and students of the school have been falling ill while on campus complaining of respiratory problems, headaches and nausea.Since January, at the start of the school term, classes have been disrupted constantly due to teachers reporting ill.On February 28, the Ministry of Education decided that classes would be held online to facilitate another environmental test after a previous one linked a persistent stench on the campus to a defective sewage system following several environmental tests on the campus.Samples of the latest tests were sent overseas and in a statement on Wednesday, the ministry said they only received the results the day before.