Brian Barton
Manhattan Beach in California has an air quality index (AQI) of 45, which is considered 'fair'. The main pollutant is PM2.5, which are tiny particles that irritate the eyes, nose, and respiratory system, and can aggravate heart and lung disease with long-term exposure. The PM2.5 concentration in Manhattan Beach is currently 1.4 times the World Health Organization's annual guideline value. While the air quality is acceptable for most individuals, sensitive groups may experience symptoms such as difficulty breathing or throat irritation with prolonged exposure.
| Characteristics | Values |
|---|---|
| Main pollutant | PM2.5 |
| PM2.5 concentration | 6.9 µg/m³ |
| PM2.5 level | 1.4 times the World Health Organization annual PM2.5 guideline value |
| PM2.5 diameter | 2.5 micrometers or less |
| Worst PM2.5 level in the last 24 hours | 18 µg/m³ |
| Current PM2.5 level | 1.3 times below the recommended WHO guideline of 15 µg/m³ |
| Water quality | Regularly updated by Heal the Bay |
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What You'll Learn
- The current particle pollution count for Manhattan Beach is 6.9 µg/m³
- PM2.5 particles are 2.5 micrometres or less in diameter
- Sources of PM2.5 particles include household activities, construction, and industrial emissions
- Sensitive groups may experience symptoms such as throat irritation and difficulty breathing
- Manhattan Beach water quality is regularly updated by Heal the Bay
The current particle pollution count for Manhattan Beach is 6.9 µg/m³
The World Health Organization (WHO) has established a guideline value for PM2.5 of 15 µg/m³. The current particle pollution count in Manhattan Beach is well below this recommended level, suggesting that the air quality is good. However, it is important to note that the PM2.5 concentration in Manhattan Beach is 1.4 times the WHO annual guideline value.
Air quality is typically assessed through an Air Quality Index (AQI), which takes into account various factors, including particle pollution. Manhattan Beach's AQI is currently rated as "good," indicating that the air quality is suitable for most individuals to engage in normal outdoor activities. However, sensitive groups, such as those with respiratory or cardiovascular conditions, may still experience symptoms with prolonged exposure.
It is worth noting that air quality can fluctuate due to various factors, including windblown dust from construction, household activities like cooking, and emissions from factories and industries. Real-time air quality monitoring helps track these changes and provides valuable information for the public to make informed decisions about their outdoor activities, especially for individuals with health sensitivities.
Overall, while the current particle pollution count indicates good air quality in Manhattan Beach, staying informed about air quality updates and taking necessary precautions, such as wearing masks or reducing outdoor activities during high-pollution periods, is always advisable to protect one's health.
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PM2.5 particles are 2.5 micrometres or less in diameter
PM2.5 particles are fine inhalable particles with diameters that are generally 2.5 micrometres or less. To put this into context, the average human hair is about 70 micrometres in diameter, making it 30 times larger than the largest PM2.5 particle.
PM2.5 particles are a mixture of solid and liquid particles that are suspended in the air. They are emitted directly from sources such as construction sites, unpaved roads, fields, smokestacks, and fires. They also form in the atmosphere as a result of complex reactions between chemicals such as sulfur dioxide and nitrogen oxides, which are pollutants emitted from power plants, industries, and automobiles.
Due to their small size, PM2.5 particles can be inhaled and cause serious health problems. They can travel deep into the respiratory tract, reaching the lungs and even entering the bloodstream. This can lead to issues such as aggravated heart and lung disease, reduced lung function, and increased mortality from lung cancer. People with pre-existing breathing and heart problems, children, and the elderly may be especially vulnerable to the effects of PM2.5.
In terms of Manhattan Beach, PM2.5 is listed as the main pollutant. The concentration of PM2.5 in the area is currently 1.4 times the World Health Organization's annual guideline value.
To protect oneself from harmful levels of PM2.5, it is recommended to refer to air quality alerts and forecasts. Using air purifiers and HEPA-grade filters can also help manage PM2.5 levels indoors.
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Sources of PM2.5 particles include household activities, construction, and industrial emissions
Particulate Matter (PM)2.5 refers to particles with a diameter of 2.5 micrometres or less. These particles are so small that they can be inhaled and cause serious health issues, especially in the long term. PM2.5 particles can cause irritation to the eyes, nose, and respiratory system, and long-term exposure can aggravate heart and lung disease. They are also the main cause of reduced visibility (haze) in the air.
Construction activities, particularly road construction and non-residential building construction, contribute to PM2.5 emissions. In 2023, construction activity accounted for 4% of total PM2.5 emissions, although this number has been decreasing over the years. Demolition and quarrying activities also emit PM2.5 particles, although to a lesser extent.
Industrial emissions are another significant source of PM2.5 particles. This includes emissions from combustion processes, such as the burning of biomass-based fuels, as well as emissions from various industrial processes. Metal production industries, particularly iron and steel production, have been major contributors to PM2.5 emissions, although emissions from these industries have been declining in the long term. Vehicle emissions, including exhaust emissions and non-exhaust emissions from sources such as tyre and brake wear, also contribute to PM2.5 pollution.
It is important to note that the sources of PM2.5 particles can vary based on geographic location and other factors. While household activities, construction, and industrial emissions are significant contributors, other sources such as outdoor combustion of gasoline, oil, diesel fuel, or wood, as well as natural sources like pollen and vegetation, also play a role in PM2.5 pollution.
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Sensitive groups may experience symptoms such as throat irritation and difficulty breathing
While the air quality in Manhattan Beach, CA, is generally considered good and acceptable for most individuals, sensitive groups may experience symptoms such as throat irritation and difficulty breathing. This is due to the presence of particulate matter (PM2.5), which refers to tiny particles in the air with a diameter of 2.5 micrometres or less. These particles are released through daily activities like construction, cooking, and industrial operations.
PM2.5 particles are approximately 30 times smaller than a human hair, making them invisible and easily inhalable. When inhaled, these particles can irritate the eyes, nose, and respiratory system. For sensitive groups, this can lead to throat irritation and breathing difficulties. It is important for individuals in these groups to monitor the air quality and take necessary precautions to protect their health.
Real-time data is available to help individuals stay informed about the PM2.5 levels in their area. For example, on August 3, 2025, the PM2.5 level in Manhattan Beach was recorded as 11 µg/m³, which is considered good. However, even at these levels, sensitive groups may still be affected. It is recommended that sensitive groups check the air quality before planning outdoor activities and take appropriate measures, such as wearing an N95 mask, to protect themselves when necessary.
The World Health Organization (WHO) provides guidelines for safe PM2.5 levels, with the recommended daily limit being 15 µg/m³. When the PM2.5 levels exceed this guideline, it is advised that everyone, including healthy individuals, reduce their time spent outdoors. This is especially important for sensitive groups, who are more susceptible to the harmful effects of air pollution.
By staying informed about air quality and taking appropriate precautions, sensitive groups can effectively manage their exposure to particulate matter and minimize the potential impact on their health. It is important to prioritize well-being and take the necessary steps to create a safe and healthy living environment.
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Manhattan Beach water quality is regularly updated by Heal the Bay
Manhattan Beach is one of over 700 beaches graded weekly by Heal the Bay's Beach Report Card, the only comprehensive analysis of coastline water quality on the West Coast. Heal the Bay provides an interactive, user-friendly Beach Report Card where water quality is regularly updated for beaches throughout LA County and beyond. The Beach Report Card is based on routine monitoring of beaches conducted by local health agencies and dischargers. Water samples are analysed for bacteria that indicate pollution from numerous sources, including human waste. Human waste contains many microorganisms that can make humans sick from a single exposure.
The City of Manhattan Beach also supports the Blue Water Task Force, an organisation dedicated to testing ocean water quality and ensuring that results comply with state-wide safe standards. The organisation collects ocean water samples to identify and monitor pollutants and bacteria in the water. If the levels are high, it may be advised that the public does not enter the water, as this may negatively impact health.
The Beach Report Card does not measure the amount of trash or toxins found at monitored beaches. However, Heal the Bay advocates for increased water quality monitoring, especially for "forever chemicals" like PCBs and DDT. Heal the Bay pushes for improvements that prevent sewage spills, advance water quality testing methods, and ensure public notifications happen swiftly and equitably.
Under normal circumstances, all beaches in the Santa Monica Bay are monitored two to three times a week in the summer on average. Heal the Bay produces annual Beach and River Report Cards for water bodies around the state that summarise year-round water quality conditions.
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Frequently asked questions
The particle pollution count for Manhattan Beach, CA, is 6.9 µg/m³.
PM2.5 refers to particulate matter with a diameter of 2.5 micrometres or less.
PM2.5 particles can irritate the eyes, nose, and respiratory system. Long-term exposure can aggravate heart and lung disease.
The World Health Organization (WHO) guideline for PM2.5 is 15 µg/m³.
To protect yourself from particle pollution, you can wear an N95 mask, limit your time outside, and follow health guidelines provided by local authorities.
