A Trader Joe’s store in Portland, Oregon, has been temporarily closed following concerns regarding asbestos exposure. The local health authorities requested the closure to address the issue, which stems from the discovery of asbestos in the store’s flooring during ongoing renovations.
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The Oregon Department of Environmental Quality (DEQ) announced on Thursday, March 5, that the Trader Joe’s located at 4715 SE Cesar E. Chavez Blvd. had shut its doors at around 5 p.m. the day before. This closure is expected to remain in effect until the problem is fully contained and the store is decontaminated. The initial investigation revealed that asbestos was detected in some flooring materials, specifically in the adhesive used under the tiles, after renovations commenced on February 15.

According to DEQ officials, the contractor responsible for the renovation had performed an asbestos survey prior to starting work, which unfortunately did not include all flooring mastic materials. Thus, the initial assessments returned negative results for asbestos presence. However, subsequent inspections revealed concerning signs, including reports of “black dust” in the store and images showcasing exposed flooring with black mastic material.
In response to these findings, the DEQ requested further testing on the mastic, which subsequently returned a positive result for asbestos at a low concentration of about 2-3%. This level exceeds the permissible threshold of 1%, necessitating remedial actions. Consequently, the store was ordered to close while a licensed asbestos abatement contractor undertakes the cleaning process.
Health officials from the Oregon Health Authority and Multnomah County Health Department have indicated that the risk to public health appears to be low, primarily due to the brief exposure duration and the relatively low concentration of the asbestos materials involved. Andrea Hamberg, the Director of Multnomah County Environmental Health Services, reassured the public that the short-term exposure posed only a minimal health risk to customers who visited the store during the renovation period.
For those who shopped at the Trader Joe’s between February 15 and the store’s closure on March 4, authorities recommend that produce be washed thoroughly and packaged foods should be wiped before being opened. Customers are advised to store any food items in clean containers and to wash clothing worn during their visit to the store.
Despite the risks associated with asbestos, health officials reiterated that employees also faced a “low” risk of adverse health effects due to the short duration of their exposure. Asbestos, a naturally occurring mineral once prevalent in building materials for insulation and fire resistance, has significantly fallen out of favour due to its association with severe health concerns.
Exposure to asbestos has been linked to a range of serious illnesses, including lung cancer, mesothelioma, and asbestosis. The United States Environmental Protection Agency (EPA) states that the level of risk is generally proportionate to the extent of exposure; the more significant the exposure, the greater the likelihood of developing health risks.
Furthermore, the potential danger of asbestos is particularly increased for smokers, emphasising the importance of minimising exposure to asbestos-containing materials. The EPA notes that harmful health effects can take time to manifest, as diseases related to asbestos exposure often develop slowly.
As the situation develops, the Trader Joe’s store remains closed to both customers and staff until the asbestos issue is fully resolved. The store management is expected to cooperate with the DEQ and health authorities to ensure that necessary safety measures are implemented and that patrons can safely return once the renovations and decontamination processes have been completed.
