Specific environmental problems in Pakistan & their
aggravation by human activities directly or indirectly Climate change
Environmental
condition of Pakistan is facing serious challenges, In this article, we will try to explore what is baseline situation in Pakistan and how environmental
issues are being aggravated by human and climate change. We will also will try
to explore where the problem lays what is extent of damage by humans and what
fault lies with government and and policy directions. What is possible remedy to it?
Image by Denny Franzkowiak from Pixabay |
Location
Pakistan
is located 29.4000° N, 69.1833° E, It is urbanized country of south Asia
covering area of 796095 sq-km, Pakistan is environmentally ranked 131 out of
146 countries (Yale University Environmental Sustainability Index 2005), ranked
112 out of 178 countries (New Economics Foundation: Happy Planet Index 2006 New
Economics Foundation: Happy Planet Index 2006).
The environmental conditions in Pakistan are a matter of great concern. A number of serious environmental problems are present in Pakistan, which are of great ecological concern in terms of its sustainable economic future.
The environmental conditions in Pakistan are a matter of great concern. A number of serious environmental problems are present in Pakistan, which are of great ecological concern in terms of its sustainable economic future.
Climate
Pakistan lies in temperate zone,
above the tropic of cancer. The climate varies from tropical to
temperate. Pakistan has four seasons: a cool, dry winter marked by mild
temperatures from December through February; a hot, dry spring from March
through May; the summer rainy season, or southwest monsoon period, from June
through September; and the retreating monsoon period of October and November.
The onset and duration of these seasons vary somewhat according to location.
Rainfall variation as less than 10 inches a year to over 150 inches a
year.
Environmental
Problems in Pakistan
- Industrial wastes
- Agricultural runoff & Evidence of Pesticide Contamination
- Deforestation
- Soil erosion
- Desertification
- Water pollution from raw sewage
- Urban Air Pollution
- Airborne Lead Pollution
- Indoor Air Pollution
- Groundwater Changes & Limited natural fresh water resources
- Water Supply and Sanitation
- Industrial Effluent
- Salinity
- Acid Rain
- Overpopulation
- Ozone
- Smog
Industrial Waste
Industrial waste is the waste produced by industrial activity, such as that of factories, mills and mines. In Pakistan major industrial cities are Karachi Faisalabad, Gujranwala, and Hyderabad and many other small industrial zones also. Industrial waste in injurious to health directly, also it contaminates groundwater and soil of area.
Aggravation
by humans: Humans play a direct role
in it by constructing houses near or at approachable distance from industry
because of factor of job opportunity any industrial area soon becomes crowded.
All damaging effects of industrial waste impact directly.
Directly: Direct exposure of body to waste
Indirectly: Contamination of soil or underground water and also
air.
Aggravation
by climate: N/A
Agricultural
runoff & Evidence of Pesticide Contamination
Pakistan is an agricultural country.to increase the
productivity pesticides are used. Pesticides with solubility of 10 ppm or
higher are lost mainly in the water phase of runoff, and have adverse effect on
human health indirectly.
Directly: Use of pesticides in farming & agriculture is
direct aggravation
Indirectly: N/A
Aggravation
by climate: N/A
Deforestation
It is defined as cutting down of trees.
Aggravation
by humans: Humans play a killing role
for themselves by cutting down trees.
Directly: Cutting down of trees, for burning and furniture
making purpose results in continues decrease in forest cover.
Indirectly: N/A
Aggravation
by climate: Floods and other natural
disaster some time reduce forest cover.
Soil Erosion
Soil erosion is a natural process, occurring over
geological time, and indeed it is a process that is essential for soil formation
in the first place. It is removal of soil particles by the motion of wind or
water.
Directly: Misuse of land, Mismanagement of arable
Indirectly: Poor canal system, forest cutting
Aggravation by climate: Floods
Desertification
Land degradation in dry lands
Aggravation
by humans: Intensification of
agriculture is actually one of the reasons behind desertification.
Directly: Population pressure water logging and salinity
Indirectly: Forest cutting, Mismanagement in agriculture
Aggravation
by climate: Rain factor, salinity.
Water Pollution From Raw Sewage
Sewage is a water-carried waste, in solution or
suspension that is intended to be removed from a community.
Aggravation
by humans: Humans are responsible for
not defining a proper mechanism to treat sewage or discharge it.
Directly: No proper mechanism, effecting soil and water
resources.
Indirectly: Not installing sewage treatment plant
Aggravation
by climate: N/A
Airborne
Lead Pollution
Lead Emission during various processes is extremely
dangerous for humans. : Air pollution is the introduction into the atmosphere
of chemicals, particulates, or biological materials that cause discomfort,
disease, or death to humans, damage other living organisms such as food crops,
or damage the natural environment or built environment.
Aggravation
by humans: The original sources of
lead can include leaded gasoline, industrial lead emissions to air, water, and
land (e.g., from smelters), leached lead from lead pipes carrying drinking water,
contaminated food, lead paint, and pottery.
Directly: Gasoline, Industries Lead Pipes
Indirectly: N/A
Aggravation
by climate: N/A
Recommendation: the government intervened to ban lead from gasoline.
In 2001-2002 all major refineries announced that they would move to production
of lead free gasoline (Paul et al, 2003).
Urban Air
Pollution
Air pollution is the introduction into the
atmosphere of chemicals, particulates, or biological materials that cause
discomfort, disease, or death to humans, damage other living organisms such as
food crops, or damage the natural environment or built environment.
Aggravation
by humans: Vehicles in poor
mechanical condition and low levels of fuel efficiency. Over the past decade
the number of diesel trucks in major cities has increased dramatically,
creating an additional source of pollution
Directly: Vehicles
Indirectly: N/A
Aggravation
by climate: CO N cycle is disturbed.
Indoor Air
Pollution
Within a confined area due to burning of specific
fuels air accumulates causing high risk indoor air pollution
Aggravation
by humans: The use of traditional
biomass fuels such as wood, dung and crop residues is widespread across the
country. According to the 1998 Pakistan Census 86 percent of rural households
and 32 percent of urban households rely on these as their primary cooking fuel
Directly: Wood burning in closed room, use of gas heaters Crop
residue and dung.
Indirectly: Person working in factory or dust arena is likely to
have disease due to impact of close air pollution.
Aggravation
by climate: N/A
Groundwater
Changes & Limited Natural Fresh Water Resources
Ground water table is being affected and it results
in reduction of small portion of fresh water reservoir. Much of Balochistan also has saline groundwater.
Aggravation
by humans: Increasing abstraction has
resulted in wells now reaching into saline layers.
Directly: Logging
Indirectly: Agricultural productivity
Aggravation
by climate: Climatic shift and change
rain pattern
Water Supply
& Sanitation
It is defined as approachability of pure water to
every individual Pakistan increased it from 85% in 1990 to 92% in 2010
Aggravation
by humans: Govt is responsible for providing
water facility to individuals.
Directly: Not supplying or Fail to create a system which
creates opportunity to provide water to everyone.
Indirectly: N/A
Aggravation
by climate: N/A
Acid Rain
Acid deposition in rain water, Pollution causing
gases is main source of acid rain.
Aggravation
by humans: Human activities are the
primary cause of gases which later become constituent of ozone.
Directly: Fuel Burning
Indirectly: Nox, Sox
Aggravation
by climate: Contaminated air can act
as a catalyst for acid rain.
Ozone
The ozone layer is a layer in Earth's atmosphere
that absorbs most of the Sun's UV radiation. It contains relatively high
concentrations of ozone (O3). Pakistan is a very small contributor in
greenhouse effect; Pakistan contributes only 0.2 % greenhouse gases of the
whole world. (Wikipedia)
Aggravation
by humans:
Directly: Refrigerators, fire extinguishers chemicals
containing chlorine and/or bromine. Chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs), carbon tetrachloride and methyl chloroform.
Halons (brominated fluorocarbons)
Indirectly: Pesticides
Aggravation
by climate: Polluted climate enhances
ozone depletion.
Smog
Smoke + fog
Aggravation
by humans: Coal, transportation
emission
Directly: Truck buses automobiles the unnecessarily large
amounts of gasoline, oil, coal and natural gas we burn every day to heat our
homes, power our vehicles, manufacture goods and provide electricity.
Indirectly: thermal power plant
Aggravation
by climate: N/A
Positive Steps Taken
The
government has expressed concern about environmental threats to economic growth
and social development and, since the early 1990's, has addressed environmental
concerns with new legislation and institutions such as the Pakistan Environment Protection Council. Yet, foreign lenders
provide most environmental protection funds, and only 0.04 percent of the government’s development budget goes to
environmental protection. Thus, the government’s ability to enforce
environmental regulations is limited, and private industries often lack funds
to meet environmental standards established by international trade
organizations. National Conservation Strategy in 1992 to the formulation of National Environment Policy in 2005.
Sources:
Pakistan Strategic Country Environmental Assessment
Wikipedia
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