Issues in Technology BY: EMILY GILL-LEWIS. Type of Issues *Social Issues*Legal IssuesEthical Issues.
Environmental Health in India: What are the issues and...
Transcript of Environmental Health in India: What are the issues and...
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Environmental Health in India: What are the issues and what is India
doing about it?
Kirk R. Smith, MPH, PhD Professor of Global Environmental Health
University of California, Berkeley
Visiting Distinguished Professor Sri Ramachandra University, Chennai
PROFESSOR TK PARTHA SARATHY
ENDOWMENT ORATION Sri Ramachandra University, Chennai
October 6, 2016
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Developed country mean
Disability-adjusted life years - DALYs
Data from GBD-13
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Metabolic Risks
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Behavioral Risks
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Environmental Risks
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The Environmental Risk Transition
• How do environmental and other health risks trend during economic development?
• Not uniform in every country at every period,
• But broadly the case both historically and in cross section.
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Risk
Development
Traditional Risks
The Environmental Risk Transition
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Risk
Development
Traditional Risk Modern Risks
The Environmental Risk Transition - USA
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Risk
Development
Traditional Risk
Modern Risks
The Environmental Risk Transition - India
Very large risk overlap period
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The three major solid fuels
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Leading cause of disease burden in 2010 by country Population Cooking with Solid Fuels in 2010 (%)
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Toxic Pollutants in Wood Smoke from Simple (poor) Combustion
• Small particles, CO, NO2 • Hydrocarbons
– 25+ saturated hydrocarbons such as n-hexane – 40+ unsaturated hydrocarbons such as 1,3 butadiene – 28+ mono-aromatics such as benzene & styrene – 20+ polycyclic aromatics such as benzo(α)pyrene
• Oxygenated organics – 20+ aldehydes including formaldehyde & acrolein – 25+ alcohols and acids such as methanol – 33+ phenols such as catechol & cresol – Many quinones such as hydroquinone – Semi-quinone-type and other radicals
• Chlorinated organics such as methylene chloride and dioxin
Source: Naeher et al, J Inhal Tox, 2007
Typical chulha releases
400 cigarettes per hour worth of smoke
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First person in human history to have her exposure measured doing the oldest task in human history
Kheda District, Gujarat, 1981
Emissions and concentrations, yes, but what about exposures? ~5000 ug/m3
during cooking >500 ug/m3 24-hour Indian standard 40 ug/m3
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Balakrishnan et al. 2013
First national household air pollution exposure assessment
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Burnett et al., EHP. 2014, Integrated Exposure-Response Functions
Secondhand Tobacco Smoke
Outdoor Air Pollution
RESPIRE
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Stroke
Ischemic Heart Disease
ALRI
ug/m3 annual average PM2.5
COPD Lung Cancer
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Relative disability-adjusted life years DALYs
LPG is benchmark
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DALYs
About 9 lakh premature deaths per year in India
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What has been done-#1
Wait for development to work.
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Low- and Middle-Income Countries
More than any time in
human history
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1990: 85%: 700 million people using solid fuels 2010: 60%: 700 million people ~1980 700 million people in entire country
700 million people in the Chulha Trap
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What has been done-#1
Wait for development to work. • Percent using solid fuel slowly declines
with development alone (no special policies)
• But in India, the number of people exposed has never declined
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What has been done #2: Make the available clean
• Many hundreds of “improved” biomass stove programs over ~60 years
• Including major national programs in China and India in the 1980/90s covering ~200 million households in all
• And in India, Peru, Mexico, Nepal, Honduras, and other countries today
• Hundreds of NGOs, big and small, promoting stoves around the world over the decades
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Unfortunately • The cleanest “improved” biomass stoves have
been disseminated to only a few tens of thousands of households in the world
• And, in spite of much progress, as yet, no “improved” biomass stove in the world comes close to the boundary between solid and non-solid fuels
• Thus, none seem clean enough to be reliably truly health protective in household use
• But more effort is still warranted.
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Increasing Prosperity and Development
Dec
reas
ing
Hou
seho
ld A
ir Po
llutio
n
Very Low Income
200 million
Low Income 400 million
Middle Income 400 million
High Income 200 million
Crop Waste Dung
Coal
Kerosene
Natural Gas
Electricity
Non-solid fuels
Solid Fuels
Liquefied Petroleum Gas
Biogas/Solar
Wood
Conceptual Indian Energy Ladder
?
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New Paradigm
Making the clean available
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Public health and environment 31 |
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Blaming the Oil/Gas Industry
• “Fracking” • Tanker spills • Off-shore platform failures • Pipeline explosions • Refinery fires • Air pollution • And, of course • Climate change
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The industry needs to push back
• It produces the fuel that could save millions of lives every year.
• By definition! • All among the poorest and most vulnerable
populations in the world • But to make this case, it needs to do much
better to make LPG available to poor populations
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Public health and environment 34 |
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Indian LPG program • Stage I: began Jan 1, 2015: PAHAL
– Direct Bank Transfer: largest in human history – All LPG now sold at market rate. – LPG sales rose 40% in commercial sector
• Stage II: began April 1, 2015 – “Give it up” campaign: 30k per day – ~11 million households have done so (June), – Connection fee from CSR funds of oil
companies ~1800 INR – Focused only on poor families (BPL)
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Give It Up campaign • Extensive social marketing
– Modi and other celebrities in speeches, media ads, bill boards, etc
– SMS messages – Fairs, athletic events, posters, skits, etc – Delivery boys – Website linking those giving up to those
receiving: middle class to poor – Key chains, plaques, awards, etc.
• Health is the message – “make a poor man’s kitchen clean”
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Times of India Oct 2, 2015 Gandhi’s Birthday
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MyLPG website: Feb 24, 2016
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LPG expansion, cont. • Phase III: Jan 1, 2016
– Income limit – USD 15,000– to be extended downwards
• Phase IV: April 1, 2016 – Ujjwala Scheme – Extend past GIU – And add additional incentives – To reach a total of 50 million below poverty
line households in 3 years – 8000 crore from gov – 1600 Rs x 5 crore
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Public health and environment 44 |
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LPG expansion, cont.
• Phase V: Fall, 2016 – Ujjwala+ campaign – Target biomass using households – That do not qualify as BPL – Funding from donations of individuals, NGOs,
businesses, foundations, gram panchayats, schools, and some matching GOI funds
• Now there are ways to address all biomass-using households in the country
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Increasing Prosperity and Development
Dec
reas
ing
Hou
seho
ld A
ir Po
llutio
n
Very Low Income
200 million
Low Income 400 million
Middle Income 400 million
High Income 200 million
Crop Waste Dung
Coal
Kerosene
Natural Gas
Electricity
Non-solid fuels
Solid Fuels
Liquefied Petroleum Gas
Biogas
Wood
Conceptual Indian Energy Ladder
?
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India: What happened? Millions
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India: What happened? Millions
In 35 years, “improved” biomass stoves had almost no impact on health. At the same time more than 400 million Indians took up clean fuels, mainly LPG
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India: What If? Millions
9% instead of 5.5%/yr for 20 years
A Chulha Trap or a
Clean Fuel Gap?
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By 2020 • 50 million more connections in BPL
households • On top of perhaps 50 million growth in
middle class • Doubling previous growth rate • By 2025 with Ujjwala+
– Perhaps another 50 million biomass households from Ujjwala+
• Maybe reach UN goals for 2030 >95% with clean cooking fuels?
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Typical Indian LPG cylinder and stove Needs work to make it truly aspirational
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Of course • Just providing affordable access to LPG or
other clean fuel does not mean people instantly switch 100%
• However, since 60% of world uses gas and/or electricity it argues strongly that the others will eventually follow.
• Is clearly what is needed in long term – why not sooner rather than later?
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Subsidy or ? • Health sector does not refer to programs to
vaccinate or provide maternal care to the poor as “subsidies” but rather
• Social investments • In order for public support of clean fuels to be
termed social investments, they need to be far better targeted than in the past.
• Modern IT technology provides ways to do so • JAM – bank accounts, Adhaar, mobile phone
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New Directions
• Work to help target subsidies – Embrace modern IT to do so
• Work with others to explore entirely different distribution modes
• Develop marketing for enhancing use after adoption
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Unique historical opportunity • More than a billion dollars (8000 crore)
being spent in three years solely on providing clean fuels to India’s poor.
• Facilitated by India’s middle class giving up their subsidies– voluntarily! >1500 Cr/y
• New internal “foreign aid” planned • Massive commitment by government • What will be the result? • Research community needs to step up
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What we need to learn • How to increase usage to the point health
benefits are large • Not a new task in the health sector –
– Just giving people latrines does not meant they are used
– Or condoms or bednets – Or many other interventions
• We have an intervention research challenge but we have good experience to apply
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Environmental Risks
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The Tamil Nadu Air Pollution and Health Effects (TAPHE) Study
1200 pregnant women and 1200 adults were enrolled from across 110 villages in Thiruvallur District and 10 municipal zones of Chennai City
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World Health Organization Collaborating Centre for
Occupational & Environmental Health
Department of Environmental Health Engineering
Sri Ramachandra University
Indian Council of Medical Research Centre for Advanced Research
On Environmental Health: Air Pollution
Among pregnant women, a 10µg/m3 change in household PM2.5 concentrations was associated with a 4 gm (95% CI: 1.38 gm,7.18gm) decrease in birth weight or a 2% increase in low birth weight (OR =1.02; 95% CI, 1.003-1.037).
– Models were adjusted for cohort location (rural vs. urban), type of house construction (a SES indicator), SES, family size, primary cookfuel, location of kitchen, maternal education, occupation, age and BMI, sex of the child, maturity (term vs. pre-term), birth order (gravida) and previous history of a low birth weight child. Restricting the analyses to term births reduced the effects estimates slightly.
Among children< 2 years, a 10 µg/m3 change in household PM2.5 concentrations was associated with a 0.3% (95%CI: 0.02%-0.69%) increase in the longitudinal prevalence of ARI and a 0.9% (OR=1.009; 95%CI: 1.001-1.016) increase in the number of episodes of ARI (in linear and Poisson regression models), respectively.
– Models were adjusted for malnutrition (weight-for-age z-score < -2), low birth weight, lack of exclusive breastfeeding during first 4 months, lack of measles immunization, solid fuel use, crowding, parental smoking, maternal illiteracy, season and birth order.
TAPHE Study Outputs (Birthweight and ARI)
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World Health Organization Collaborating Centre for
Occupational & Environmental Health
Department of Environmental Health Engineering, SRU, Chennai
Sri Ramachandra University
Indian Council of Medical Research Centre for Advanced Research
On Environmental Health: Air Pollution
Provides some of the first quantitative exposure-response functions for birthweight , ARI, respiratory symptoms and lung function in relation to household and ambient air pollution
Provides some of the first integrated rural urban E-R estimates in India
Provides inputs for on-going and future cohort studies Informs intervention programs and affords abilities to piggy
back on natural experiments or planned air quality actions in rural and urban settings
Provides a framework for creating India specific exposure models
TAPHE Study Outputs
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India
• Has very big environmental health problems • But has taken completely Indian and
innovative steps to solving one of them – household air pollution
• And has been developing the research expertise to evaluate these and to do even better while contributing to global science
• At SRU, and elsewhere
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Many thanks
For publications & presentations: Just “Google” Kirk R. Smith