POLLUTION Flashcards
Atmosphere
Contains all the air in the earth’s system
Troposphere
the lowest layer of the atmosphere which extends from the surface of the Earth up to 12 kilometers in height
Troposphere
holds the air that plants need for photosynthesis as well as the oxygen that other living things need to breath
Troposphere
Most of the daily weather we experience happens within this layer.
stratosphere
Located above the Troposphere which extends from 12km to 50km above the Earth’s Surface
Stratosphere
Known as the Earth’s Ozone Layer
Stratosphere
Temperature in this region increase in height
Stratosphere
Nearly cloud and weather free but can have polar stratospheric clouds specifically in areas with high latitude during winter
Stratosphere
the highest part of the atmosphere where jet planes can fly
mesosphere
Located between 50km to 80km, temperatures in this layer is much colder compared to the first two mentioned
mesosphere
Average temperature in this layer can reach up to - 85 °C
mesosphere
layer of the earth where meteorite burns upon entering the atmosphere
thermosphere
Located between 80km to 700km
thermosphere
closes layer of atmosphere to the sun which temperature can reach up to 2,000 °C
thermosphere
Aurora Borealis and Aurora Australis can be seen in this layer
ionosphere
Not a distinct layer like the others
ionosphere
overlaps or serves as the transition boundary of the mesosphere, thermosphere and exosphere
ionosphere
grows or shrinks depending on the absorbed energy from the sun
Ionosphere
Its name comes from the electrically charged ions within this layer.
exosphere
Located between 700km to 10,000km and the highest layer of the atmosphere
exosphere
There is no weather in this layer and aurora are sometimes can be seen in its lowest part
exosphere
Most of the satellites orbit in this layer
Primary and secondary pollutants
2 types of air pollutants
Primary pollutants
Emitted directly from identifiable source
Secondary pollutants
Produced in the atmosphere when certain chemical reactions take place among primary pollutants
Particulate matter
Consists of a variety of solid particles and liquid droplets
Particulate matter
small and light enough to remain suspended in the air for long periods.
Particulate matter
soil particles, soot, lead, asbestos, sea salt, and sulfuric acid droplets
Sources of particulate matter
Combustion of fuel, industrial processes, construction activities natural sources
Sulfur oxides (Sox), Nitogen Oxide and Nitric Acid (NOx), Carbon Monoxide (CO), Ammonia (NH3)
Common air pollutants
Sulfur oxides (Sox)
Gas, colorless and odorless in low concentrations, but with irritating odor in high concentrations.
Sulfur oxides (Sox)
Causes acid precipitation.
Sources of Sulfur oxides (Sox)
Burning of fossil fuels, industrial processes (metal smelting, oil refining), volcanic eruption
NO (95%) and NO2 (5%)
play a role in the formation of photochemical smog
Photochemical smog
a mixture of chemicals formed under the influence of sunlight in cities with heavy traffic
Sources of Nitogen Oxide and Nitric Acid (NOx)
Burning of fossil fuels, industrial processes (metal smelting, oil refining, volcanic eruption
Carbon Monoxide (CO)
Colorless, odorless, and highly toxic gas that forms during the incomplete combustion of carbon-containing materials.
Sources of Carbon Monoxide (CO)
Incomplete combustion of fossil fuels, industrial process, wildfires.
Ammonia (NH3)
Colorless gas with pungent smell
Sources of Ammonia (NH3)
Agricultural activities, production of chemicals, decomposition of organic matter
Ozone
a colorless and highly reactive gas, is a major ingredient of photochemical smog
Ozone
a secondary pollutant that forms from the primary pollutants such as Volatile Organic Compounds (Hydrocarbons) and nitrogen oxides (NOx) in the presence of sunlight.
Ozone
Its formation is mainly from the automobile emissions
Secondary particulate matter
Particulate matter formed in the atmosphere from chemical reactions of primary pollutants such as SO2, NOx, and Ammonia
Lead (Pb)
Toxic metal that can be found in air, water, soil and dust
Sources of lead
Industrial processes, lead gasoline, volcanic activities, weathering
Mercury (Hg)
Toxic heavy metal that can exist in various forms
Sources of Mercury
Industrial process, mining, volcanic activities, weathering
Units of measurements for air pollutants
Parts per million (ppm), parts per billion (ppb), micrograms per cubic meter (µg/m³), milligrams per cubic meter (mg/m³)
Parts per million (ppm)
Commonly used for measuring carbon monoxide, sulfur dioxide, nitrogen dioxide and ozone
Parts per billion (ppb)
Commonly used for measuring lower concentrations of gases such as VOCs and other traces of gas
Micrograms per Cubic Meter (µg/m³)
Use for measuring PM10 and PM2.5 and gaseous pollutant such as sulfur dioxide and nitrogen dioxide
Milligrams per Cubic Meter (mg/m³)
Unit of measurement for higher concentration of gaseous pollutants
Ambient Air Quality and Standards
The quality of air in the outdoor environment crucial for public health and environment protection
Ambient Air Quality and Standards
These standards are the guidelines for protecting human health by maintaining the quality of air at the safe measures
Air Quality Index (AQI)
Used to relay information about the air quality to the general public
Air Quality Index (AQI)
a visual of how and safe the ambient air quality outside for the general public
DENR - EMB
responsible for monitoring the ambient air quality of the country. It has stations scattered which measures the concentration of pollutants in compliance with the safety standards
Programs and initiatives
Emission reduction programs, public awareness campaign, regulatory measures
Emission Reduction Programs (Challenge)
Strengthening Regulations
Public Awareness Campaign (Challenge)
Expansion of monitoring networks
Regulatory Measures (challenge)
Promotion of sustainable practices
Water pollution
contamination of water bodies (lakes, rivers, oceans, groundwater and aquifer) by substances from activities
Water pollution
can put adverse effects on the human health and ecosystem which can direct or indirectly affect econom
Types of water pollution
Chemical, physical, biological, nutrient pollution
Chemical pollution
Industrial wastes, heavy metals, pesticides and herbicides
Physical pollution
Plastic wastes, sediments, thermal pollution (heat)
Biological pollution
Invasive species (flora and fauna), pathogens, algal blooms
Nutrient pollution
Nitrogen, phosphorus, fertilizer
Sources of water pollution
Industrial discharge, agricultural runoff, sewage and wastewater, oil spills, mining activities
Industrial wastes
are often discharge from factories and other manufacturing sectors.
Agricultural runoff
Fertilizer, pesticides, animal wastes
Sewage and wastewater
from untreated domestic waters discharged in waterbodies
Oil spills
Accidents involving oil tankers and drilling operations can lead to ____
Mining activities and operations
pose great risks in bodies of water which can be irreversible.
DAO 2016-08
Guidelines for establishing the standards on water quality management of all forms of waterbodies in the Philippines pursuant to section 19e and 19f of RA 9275
Objective of DAO 2016-08
provide guidelines for the classification of waterbodies in the country, determine time trends and evaluation of stages of deterioration/enhancement in water quality
Water sampling techniques
Systematic, random, judgemental, stratified, haphazard.
Systematic sampling
Points are selected at even intervals (statistically unbiased).
Systematic sampling
This sampling technique is easy to implement, however, it may require more samples compared to other methods
Random sampling
points where randomly assigned but not arbitrarily.