The Potential Health Effects series of updates to this petition is all about discussing the science and research conducted since the Residual Waste Regulations were last updated in the 1990s.  When these regulations were last updated, it was still legal to smoke in government buildings.  Science has progressed and advanced, but our regulations have not. 

Residual Wastes, and specifically Food Processing Residuals (FPRs) are made from food.  Generally speaking, food allergies are among the most common and dangerous allergies and more specifically speaking dairy products and nuts.  These are some of the most common food wastes, and they are applied Cumberland County PA in significant quantities.  Many food wastes also contain wash waters laced with cleaners and sulfides, which are also common allergy sources. 

The largest risk is hypersensitivity, which can cause anaphylaxis and can be fatal.  To a lessor extent, these materials may be inhaled and cause other less severe health problems.  Imagine a cyclist with severe allergies riding through an area where the product was being applied, or a resident who was forced to deal with daily allergies around the material being applied on a daily basis 

According to the Journal of Clinical and Molecular Allergy
"Though not widely recognized, food hypersensitivity by inhalation can cause major morbidity in affected individuals. The exposure is usually more obvious and often substantial in occupational environments but frequently occurs in non-occupational settings, such as homes, schools, restaurants, grocery stores, and commercial flights. The exposure can be trivial, as in mere smelling or being in the vicinity of the food." 
(Ramirez and Bahna, Abstract)

"In the majority of patients, food particle inhalation induces respiratory symptoms that can be nasal (rhinorrhea, sneezing, nasal congestion), ocular (tearing, redness, irritation), or lower respiratory (cough, wheeze). In addition, skin manifestations and even, although much more rarely, anaphylaxis can occur." 
(Ramirez and Bahna, Manifestations)

It should also be noted; that allergies are on the rise.
“The US Centers for Disease Control and Prevention, using data from one question in the US National Health Interview Survey, reported that the prevalence of food allergies increased among children from 3.4% in 1997 to 1999 to 5.1% in 2009 to 2011.34 A US survey relying on parental report of child peanut allergy but using identical methodology over time showed a rate of 0.4% in 1997 increasing to 1.4% in 2008.35 An unrelated and unselected birth cohort study in eastern Massachusetts estimated a peanut allergy rate of 2% around 2010 by using stringent criteria (peanut IgE, ≥14 kUA/L and prescribed epinephrine autoinjector), further suggesting at least a very high rate if not confirming an apparent increase in prevalence.”
(Sicherer & Sampson)

Sources:
Ramirez, D. A., & Bahna, S. L. (2009). Food hypersensitivity by inhalation. Clinical and Molecular Allergy, 7(1). doi: 10.1186/1476-7961-7-4

Scott H. Sicherer, MD, & Sampson, H., MD.  (2018)  Food allergy: A review and update on epidemiology, pathogenesis, diagnosis, prevention, and management. The Journal of Allergy and Clinical Immunology 2018 Jan;141(1):41-58. doi: 10.1016/j.jaci.2017.11.003. Epub 2017 Nov 21.