Description: The 1-Month Restaurant Cockroach Explorer (New York City) displays the most recent month of restaurant cockroach infestations in New York City. A month time-window was chosen as this is the a common time required to clear a cockroach infestation. The size of each marker indicate the severity of health code violations, while the marker color reflects the final health department grade at time of inspection. Restaurants "Not Yet Graded" can be due to various reasons, including new permit applications and inspections under administrative review. Restaurants assigned a "Z" grade have been closed by the Health Department due to serious and critical health violations that pose immediate hazards to the public; the restaruant may potentially reopen upon correction and re-inspection.