Related Experiment Video
Updated: May 5, 2026

05:45
Composition and Distribution Analysis of Bioaerosols Under Different Environmental Conditions
Published on: January 7, 2019
13.0K
[Human exposure to livestock pollutants]
Marcella Guarino1, Luigi Bonizzi, Claudio Colosio
1Dipartimento di Scienze Veterinarie, per la Salute, la Produzione Animale e la Sicurezza Alimentare (VESPA), Milano, Italy. marcella.guarino@unimi.it
Giornale Italiano Di Medicina Del Lavoro Ed Ergonomia
|December 6, 2013
Summary
Particulate matter (PM) in animal facilities originates from feed, animal dander, and waste. Managing litter and feed distribution impacts daily PM concentrations, with ventilated ceilings offering innovative animal and stockman welfare protection.
Area of Science:
- Environmental Science
- Agricultural Engineering
- Animal Science
Context:
- Particulate matter (PM) is a significant air quality concern in livestock housing.
- Understanding PM sources and characteristics is crucial for mitigating health risks in pig and poultry facilities.
Purpose:
- To identify and characterize the sources of particulate matter in pig and poultry operations.
- To analyze the factors influencing daily variations in PM concentrations.
- To evaluate protective measures for animal and human welfare.
Summary:
- Particulate matter in pig and poultry facilities originates from feed, skin/fur/feathers, feces, and litter.
- Daily PM concentrations fluctuate based on litter management, feed distribution, and shelter cleanliness.
- Ventilated ceilings represent an innovative solution for improving animal and stockman welfare.
Impact:
- Provides critical data for developing effective air quality management strategies in livestock buildings.
- Informs the design and implementation of improved housing systems to enhance animal and human health.
- Highlights the importance of integrated approaches to environmental control and welfare in animal agriculture.
Related Concept Videos
Types of Toxins
3.7K
Humans continually engage with an environment rich in potentially harmful chemicals. These are introduced to our bodies through inhalation, ingestion, or skin contact. These chemicals exist in various forms, such as air and environmental pollutants, agricultural chemicals, organic solvents, and heavy metals.
Air pollutants, primarily gases, pose significant threats to respiratory health, leading to conditions like hypoxia, lung cancer, and in extreme cases, death.
Environmental pollutants like...
Air pollutants, primarily gases, pose significant threats to respiratory health, leading to conditions like hypoxia, lung cancer, and in extreme cases, death.
Environmental pollutants like...
3.7K
Toxicity Testing in Animals
204
Toxicity tests in animals are grounded on two main assumptions: first, the effects observed in laboratory animals can be extrapolated to humans, especially when adjusted for body surface area; second, high-dose exposure in animals is essential to identify potential human hazards from lower doses. This is based on the quantal dose-response concept, which faces the challenge of extrapolating results from relatively few test animals to much larger human populations. For example, a 0.01% incidence...
204
Toxic Reactions: Overview
4.2K
When toxic substances penetrate the human body, they disseminate to various tissues, undergoing metabolic changes. This process yields reactive metabolites that may covalently bind with specific target molecules, resulting in toxicity.
Toxicity falls into two primary categories: local and systemic.
Local toxicity appears at the exposure site, such as protein denaturation caused by caustic substances.
In contrast, systemic toxicity requires the toxic agent's absorption and distribution,...
Toxicity falls into two primary categories: local and systemic.
Local toxicity appears at the exposure site, such as protein denaturation caused by caustic substances.
In contrast, systemic toxicity requires the toxic agent's absorption and distribution,...
4.2K

